Thursday, April 09, 2009
Kaletsky on Homo Economicus
Tuesday, March 31, 2009
Catholic Reiki
Is it just me or is the notion of the Catholic Church accusing Reiki practitioners of having beliefs that "lack scientific credibility" seem ironic? I am in favour of the Church promoting belief in science and even for it to accuse Reiki practitioners of science, but I must admit that a frisson of irony bubbles through me at the thought.
Of course, reiki is 'superstition' and is in no way similar to Catholic beliefs like saints laying on of hands. Of course.
Sunday, March 29, 2009
Poor Blacks 'Envy' Rich Whites
Here I report briefly on a recent paper in the Cambridge Journal of Economics by Haile, Sadrieh and Verbon. I appreciate the intentions of the paper, but I believe that it was poorly executed and, consequently, their results are unconvincing. As the authors state, "[N]o study so far has attempted to disentangle the ethnicity effects from the income inequality effects." (705) Their study fails to disentangle the effects too.
The authors ran trust games in two South African universities: The Universities of Potchefstroom and Mafikeng. (Clarification: They are now both campuses of North-West University.) They say the University of Potchefstroom is predominantly White, it is not. In 2003 the university had 41% White students, and the majority of students were Black (47%) with the remainder Coloured, Asian and Other (report here). For Mafikeng the statistics in 2003 were 0.5% White and 98.5% Black with the remainder Coloured and Asian (report here).
The authors ran anonymous control experiments in which no information was revealed. In the treatment experiment both race and income level were revealed. They revealed race and income by telling subjects directly whether their partner had reported themselves as White or Black, and also whether their partner had reported their perceived income as above average or below average. There are thus four potential categories: {Black-Low, Black-High, White-Low, White-High}.
The first problem is with their racial categorization. In South Africa people report whether they are White, African, Coloured, or Asian with the three final groups all counting as 'Black' (see the CEE report here). The authors assumed that all subjects would know what was meant by 'Black'. I did not see evidence that they tested this. Moreover, as shown by Tyson et al (1988), the levels of prejudice within Whites varies dramatically with significantly lower levels of prejudice (towards non-whites) among English home language Whites than among Afrikaans home language Whites. Furthermore, when the researchers provided the racial information in this way it erased any possibility to understand the underlying mechanisms to identify ingroup and outgroup membership. Why not use names (Bertrand and Mullainathan 2004, Van der Merwe and Burns 2008)? photographs (Eckel and Wilson 2002, Burns 2004, 2006)? cartoons (can't remember the reference)?
Second, their experimental design was poor. To separate the effects of race and income, and to postulate about combined effects we need experiments on each of these separately. What this means is that they ran an insufficient number of treatments. We not only need race treatments alone, but also income treatments alone for a full complement of treatments that would allow valid interpretations of their results, i.e., we need {(black, white) (white, black), (black, black) (white, white)} treatments, and {(high, low) (high, high), (low, low), (low, high)} treatments. Once these have been run then you can do Haile, Sadrieh and Verbon's experiment. Their experiment does not actually isolate what they say it does.
Third, saying that low income Blacks don't give to high income Whites is because of 'envy' may be inaccurate. Though the behaviour is exhibited for low income blacks towards high income whites only they may feel resentment, spite, or hatred towards this group for reasons correlated with high income and whiteness (say, family complicity with apartheid, perceptions of persistent racism, political inclinations, undeserved benefits - on average Whites more likely to be employed and have higher income in North-West than Blacks). Black people in Potchefstroom, for example, may hate the (predominantly Afrikaans?) richer Whites. I understand that saying hatred motivates people is not politically correct, but saying that the Haile, Sadrieh and Verbon result is a consequence of envy without admitting other possibilities is speculation. What about disgust? spite? anger?
Fourth, why do they not present any independent evidence from the sampled students, or perceptions by other students at the universities, on socio-economic data about black, white, high income and low income individuals? If we had more information about these factors then we might have greater insight into the factors underlying the 'envy' result.
Lastly, the sample does not contain a sufficient number of wealthy Blacks. I believe this to be a consequence of where the authors chose to run the experiments. Had they chosen to run the experiments in Cape Town, Johannesburg or Pretoria they would probably have found more (though not many) wealthier Blacks. Instead, they chose areas that were particularly unsuited to their needs. North-West is one of the poorer South African provinces (see basic provincial information).
There are several other points worthy clarifying, but the points I raise were those that came to mind. I hope that more and similar work is carried out in South Africa, particularly work that "[attempts] to disentangle ethnicity effects from income inequality effects." With this work as a baseline I think that a substantial amount of research can proceed and clarify the results that Haile, Sadrieh and Verbon present.
Point of clarity
I have tried twice to contact Prof Verbon as the contact author listed on the paper to obtain additional information not listed in the paper. I have not received any responses.
Reference
D. Haile, A. Sadrieh, H. A. A. Verbon (2008). Cross-racial envy and underinvestment in South African partnerships Cambridge Journal of Economics, 32 (5), 703-724 DOI: 10.1093/cje/ben011
Additional Sources: SouthAfrica.info The all-in-one official guide and web portal to South Africa.
A StatsSa (2002) report on North West from 2000 data.
Friday, March 27, 2009
Fiction
Graham Greene - The Quiet American
As The Quiet American was the first Greene novel that I read, I had to accustom myself to Greene's style - it's clean and can stab you suddenly with a particularly deft or accurate description. I thought his characterization was precise: Phuong and her Princess Anne, Fowler's responses to his wife, Pyle's naiveté. Greene's voice is well-directed, displaying his contempt for polar morality, and specifically the jingoistic, with-us-or-against-us thinking of 20th century USA.
The plot unfolds inevitably - the inertia of Pyle's beliefs about the US and Indochina propel the narrative onwards. Greene depicts a game of political chicken. In the ultimate moments, neither driver has the insight to spin their steering wheel to avoid collision. The end must be violent. Greene was known to dislike US foreign policy, and to portray the world as a palette of moral greys - The Quiet American captures both sensibilities well.
On Chesil Beach is the first Ian McEwan book I've read. In it he describes a newly married couple's relationship and their struggle to culminate their wedding vows. McEwan maps their relationship up to their marriage: how
their intimacy evolved, how they came to love each other, how personal taboos result in their inevitable repulsion.
McEwan's prose is direct: it cuts you, sews you back up, then slices the sutures to expose the wound. Occasionally though his attempts to re-slice don't succeed and you get the sense that a medical intern is fumbling with your wound, rather than having a doctor perform exact surgery.
I am thankful the book is short. I think it could have been shorter. McEwen, though developing the characters a bit, does not develop Flo and Ed as fully as I would have expected from a novel. If he intended to write spare prose, to be cutting, then this book could have been a lengthy short story in a collection, rather than a short novel. That said, I still enjoyed it and don't lament having read it as some reviewers did.
Useless information: the book's front cover annoyed me. A red information circle told me that the book was written by 'The Bestselling Author of Atonement'. As much as I appreciate this information, I detest images on the covers of books that are not to do with the book itself. I always remove all price tags and stickers from books and I scratched at this circle many times wishing I could erase it.
Non-fiction
On writing:
Clare Kehrwald Cook, 1985, Line By Line: How to edit your own writing Cook's advice on editing is separated into five sections: Loose, Baggy Sentences; Faulty Connections; Ill-matched Partners; Mismanaged Numbers and References; and Problems with Punctuation.
Cook advises that you revise repeatedly. She argues that no one is better than the author at understanding the meaning that they intend, and that they can best select the appropriate verb, and delete the unnecessary adverbs, prepositions and other fluff. Her method includes instructions on tracing subjects and verbs, clearing out lurking prepositional phrases, and more. We understands her method because Cook provides many examples and many solutions, while reminding us to propose our own solutions for practice.
The book contains two appendixes: the first reviews the parts of sentences, the second is a glossary of 'questionable usage'. The appendix on grammar is particularly useful because you can refer to it if you come across an odd or forgotten term that you need to clarify.
I found the book useful and instructive. It complements other grammar and style texts well. I plan to re-read it to incorporate the rules into my writing and my editing.
Booth, Colomb and Williams's book is probably best read by an undergraduate, an inexperienced graduate student, or a junior professional. Nevertheless, I found it useful because my research education was predominantly experiential: an osmosis of 'do this' and 'don't do that' from mentors and supervisors. This book fills in the gaps. The authors instruct us in all the phases of research from the initial stages through to drafting and reviewing. I appreciated the framework as I have never done a formal research course. (Odd for a graduate student I think - it seems economists believe in research 'tools' other than writing and drafting.)
The book has four main sections. Booth, Colomb and Williams introduce by asking What is research? and Why write it up? They proceed to the initial steps of research: research questions, research problems and the nuances of sources. Third, they consider the basics of argumentation: claims, reasons and the problematic notion of 'warrants'. Fourth, they discuss drafting, revision, visual evidence, introductions and conclusions, and style. They provide useful examples and concrete advice; the 'Quick Tips' at the end of each chapter are
very good and I will probably quote them to students one day. They write with a humorous and avuncular tone - like someone giving you kindly advice rather than chastising you from on high.
I plan to re-read the book to reinforce the need to discipline myself, to obey rules I should, and to adopt methods superior to my half-evolved ones. As the authors comment, the book should be accompanied by other guides on style, grammar and editing. I would recommend Strunk and White's The Elements of Style and Cook's Line by Line. For social scientists, McCloskey's Economical Writing serves well. For other non-fiction writers William Zinsser's On Writing Well (comment below).
William Zinsser - On Writing Well
Zinsser's book, first published in the 70s, is part how-to, part autobiography and part travelogue. I say travelogue because he writes by telling us about the landmarks in 'good writing', the individuals who populate it and the methods that we should adopt to understand and better relate to good writing. His book verges on ethnography.
Echoing messages from Strunk & White; Booth, Colomb & Williams; McCloskey; Cook and several others, Zinsser endorses a writing style derived from accurate verbs and precise nouns. I believe this is the best advice he could give and he provides many motivations for his claims about style.
One Amazon reviewer felt let-down by Zinsser's continuous referral to his own writing processes, the reviewer wanted something even more 'how-to'. I found this criticism odd. Zinsser describes a method to write, contextualised in his work. He repeats a writer needs to write and edit, write and edit. He describes several ways to do this. He instructs the reader on methods for given subject matter and applies his methods by conjuring examples from his extensive knowledge of good writing, as well as his acquaintance with poor writing. Additionally, I have not read any writing guide that was 'independent' of its author, in fact if such a guide were written it would probably be hollow and vapid. Read the book and enjoy Zinsser's insight into writing well. I treasure this book already and I shall probably refer to it many times in the future.
On other topics
This book is fantastic. Kapuscinski's essays on his experiences of living in, toiling through, and growing to adore Africa are phenomenal. I intend to put essays from this book on my reading lists for students when I teach courses about African Development one day.
When he writes, Kapuscinski captures what economists take reams to deliver. African development remains dependent on aid in many countries, many societies lack basic resources, and institutions built for extraction and exploitation obstruct their development.
Kapuscinski laments Africa's poor development and wishes that something could have happened to put more of African countries on paths to development. Kapuscinski's writing pulls you into the deep sadness he feels when he reflects on Africa, but the root of that sadness is a strong, powerful love that will draw him back to the continent, and, I hope, one day make him happy about the continent's achievements.
Anne Fadiman - At Large and At Small: Confessions of a Literary Hedonist
Prior to reading Fadiman's Ex Libris: Confessions of a Common Reader, I had not delved much into the personal essay genre. Reading Fadiman has changed that. My wife bought me Ex Libris for our first anniversary, subsequent to which and a couple of weeks after returning home, I looked up Fadiman online to see that At Large and At Small had recently been published. It is most definitely a 'literary gem', as one of the Amazon reviewers comments.
Fadiman deals with sensitive topics gracefully and wittily. In an interview, Fadiman commented that writing personal essays requires that you turn up the 'loudness of your voice'. If so, then somehow Fadiman has managed to select the perfect decibel equivalent at which her writings retain intimacy and factualness while they sustain humour and poignancy. Fadiman shows how she, and anyone really, can be simultaneously enamoured of an historic figure, while perturbed by their character, as evidenced by her commentary on Coleridge and Stefansson. Such personal paradoxes tie well into her essay on the culture wars where she laments the polarization of what makes literature worthwhile. She concludes that both literary value and moral lessons engage the reader and promote literature of all kinds and that the dichotomy is false. These and other ideas float tantalizingly on the surfaces of her essays, while anchored suitably by her research and by her breadth of reading.
I strongly recommend this book to anyone interested in Fadiman's previous collection Ex Libris, while telling them to be aware that they are in for a different literary journey: equally as good, but with a more varied landscape of subject matter.
Lewis Buzbee - The Yellow-Lighted BookshopHaving read Ex Libris and At Large and At Small
(above) I rated them on amazon.co.uk. This book appeared on my 'recommendations' list soon afterward. It was relatively inexpensive and well-reviewed, so I took the risk. I was very happy that I did so.
Buzbee's memoir and history detail his experience of book-selling in addition to describing the dynamics of selling books in the past, from Alexandrian scroll-sellers to modern day door-to-door Bible and encyclopedia salesmen (they seem always to be men, don't they?).
The book is easy to read, informative and well-written. It fills a space in my burgeoning collection of books about books. It is worth reading simply for the anecdotes that Buzbee recounts about the book industry. The research he put in to the history of books, book selling and publishing makes the book even more entertaining. I was happy Amazon's algorithms selected this book for me.
Next time
I am currently reading E.B. White's Essays of E.B.White, Paul Johnson's Creators and Marc Hauser's Moral Minds. I'll let you know how they go.
Monday, March 23, 2009
South African Scores an Own Goal for Democracy

Wow! Denying the Dalai Lama a visa, that's what I call self-righteous.
Or maybe it suppresses speech, shows South Africa kowtowing to Chinese interests and promotes illiberal politics inconsistent with the South African constitution.
I could be wrong though. it could be 'an independent, sovereign decision' as Ronnie Mamoepa says.
Hmm... methinks kitty represents my opinion well.
Anyway, this highlights the value of blogging. People make a point, others, in the know and with access to the statistics, correct them quickly. Consequently, our intellectual capital can develop swiftly and improve in accuracy. What a valuable process!
HT: Chris Blattman
Saturday, February 21, 2009
Articles and Blog Posts
Willem Buiter - Capital Controls
New Scientist - Are We About to Eliminate AIDS?
Economist - Gesticulating Helps Children to Learn
Dan Hamermesh - An Economics Rap
Brad DeLong (in The Week) - End Times for Milton Friedman?
Seed - Adapting to a new economy (on evolutionary economics, I am a fan of the notion)
Axel Leijonhufvud - No Ordinary Recession
Vox - Volunteering and the State
Recent Essays I've Read
Emily Bernard - Teaching the 'N-word'
James McConkey - What Kind of father am I?
Nassim Taleb -The Fourth Quadrant: A Map of the Limits of Statistics
A fantastic resource for lectures online: Academic Earth.
A good poem: Samuel Taylor Coleridge - Christabel
Thursday, February 12, 2009
SA ranks 2nd Worldwide in budget openness
Duncan Green, at From Poverty to Power, comments on the recently released 'Open Budget Initiative'. What makes me happy is that SA is one of the top ranked for budget transparency protocols. That is fantastic.
Green's comment:
Only five countries of the 85 surveyed—France, New Zealand, South Africa, the United Kingdom, and the United States—make extensive information publicly available as required by generally accepted good public financial management practices.
This is really great for SA, especially in the current climate where you want to know what the government of the country in which you are investing is intending to do. Well done SA. Well done Trevor.
Saturday, January 31, 2009
I am currently reading Ryszard Kapscinki's collection of essays on living in and and reporting from Africa called The Shadow of the Sun. As many of you know, I am intrigued by parochialism and in-group and out-group preferences. Kapuscinski (2001, 188-89) captures the idea perfectly in his essay 'The Black Crystals of the Night,'
Our contemporary suspicion of and antipathy for the Other, the Stranger, goes back to the fear our tribal ancestors felt towards the Outsider, seeing him as the carrier of evil, the source of misfortune. Pain, fire, disease, drought, and hunger did not come from nowhere. Someone must have brought them, inflicted them, disseminated them. But who? Not my people, not those closest to me - they are good. Life is possible only among good people, and I am alive, after all. The guilty are therefore ther Others, the Strangers. That is why, seeking retribution for our injuries and setbacks, we quarrel with them, enter into conflicts, conduct wars. In a word, if unhappiness has befallen us, its source is not within us, but elsewhere, outside, beyond us and our community, far away, in Others.Does this not capture the notions well? Parochialism, war, altruism towards our in-group, distrust of the out-group all of these ideas are illustrated. Reading is such a pleasure.
Friday, January 30, 2009
As it was the festive season I took time off to ignore my google reader, get research done and then take a couple of days off with my wife over our anniversary (shock horror no internet access crazy!), I also went to Plett with my family before returning to Italy. As my South African sojourn ended there were flights and waits in airports (someone should write 'Doha: An Ode'). Consequently, I managed to read some books, mostly works of fiction, but there are a few non-fiction works sticking there hands up in the air awaiting a mention.
FictionI tooka little time to read my ever-companionable and enjoyable Galactic Milieu series by Julian May. In combination with the May's Saga of Pliocene Exile it is basically a tale of felix culpa for one of the main characters, Marc Remillard. I love this series for no obvious reason, it involves 'higher mind powers', aliens intervening in Earth Civilization in the early 21st century and odd Catholic theology, but I still love the main characters and the storyline. A human who takes a singular leap forward in evolution and basically becomes a disembodied brain sustained by his mindpowers! I can't really fathom why I appreciate this series so much, I think it appeals to the fantasist in me.
After May's series, I read Evelyn Waugh's Brideshead Revisited which I had been intending to read for ages. My wife has a fantastic hard cover Everyman's library version. Although somewhat strange to get into at first (I don't seem to have much sympathy for Oxfordian life), I enjoyed the second half of the book greatly. The reflections on cultural degeneration, the issue of reconciling religion and death, of what it means to be married in pre-WWII England and what lovelessness within marriage entails was both disturbing and enlivening (enlivening because I sympathise, I suppose, with the problems with reconciling areligiosity and death). I recommend this book strongly.
Following this, I read Philip Roth's The Plot Against America. Wow! I love it. It is a phenomenal book. It is an alternative history that considers what might have happened in the US if, instead of FD Roosevelt winning the 1940 US Election, Charles Lindbergh had run as the Republican candidate and beaten FDR. It is told mainly from the perspective of 8-year-old Philip Roth. Roth has a total command of his conceptualisation of this alternative history and writes the details of it well, focusing on the experiences of a working class Jewish family in Newark, New Jersey. Although potentially difficult for some because of its weighty factual nature in certain sections, the writing pulls you through, and brings you to a better understanding of the United States. This is high quality social commentary from Roth.Next up was another work of fiction, John Updike's Terrorist. Updike follows a few characters in this book, the two main characters are a young Islamic man, Ahmad, who was abandoned by his Muslim father and lives at home with his American liberal, nurse's assistant cum artist mother. The second main character is Jack, a Jewish teacher and counselor at Ahmad's high school who becomes invested in the idea of Ahmad going to university rather than becoming a truck driver. Reading the two reviews on Amazon that gave the book one star, I can't help but think they gave the book an odd reading. The one complains that it gives a unidimensional account of Muslims, it doesn't, in fact the whole purpose of the book is to portray the kind of Islam that a devout, almost obsessive teenager constructs in order to satisfy his own preferences. It also does not portray this Islam as the Islam practised by other Muslims, in fact Updike goes to great lengths to show the different shades of Muslims once could potentially find in the world setting Ahmad in opposition to his boss Mr. Chehab. Anyway, the book does not have the grace that I have experienced reading some of Updike's earlier work, but it is definitely a worthwhile read. I'd give it four stars, not one, because he portrays the character of Ahmad well, I believe, even if he doesn't deal with the religion in as nuanced a way as some might like. If I was comparing it only to Updike's own work, rather than the work of the rest of the world, I'd give it three stars. Here is an interview with Updike about the book. Here's another (video) interview.
E.M. Forster's Maurice was next up on my shelf. Amy had been recommending this to me for ages, we had previously found a copy in that fantastic bookshop on Kloof Street (the name of which I forget), Book Lover's Paradise I think. It had sat on the shelf, unread, while I was here in Italy (Amy had read it previously for a course at uni). The book is a beautifully written, and fantastically witty, depiction of the adolescent and young adult life of Maurice, a young man from an upper class, but not noble, British family. Maurice is homosexual. Forster protrays the struggles that Maurice goes through with forcible and graceful language, portraying both Maurice's limitations to his partners, his fall, his classism (which Maurice fails to realise is as bad as homophobia) and, finally, a sexual and mental awakening to the ways in which his homosexuality will affect his life. The book is highly meaningful as one of the first pieces of genuine 21st century 'gay' literature, as Forster completed the work in 1914 but it was only published posthumously. Forster's reflections on the laws in the UK, which he wrote as part of an afterword during the 1960s, also shows how worried and anxious he was about the state of the law in the UK and how he felt that homosexuality would never be granted the status that it now has. This book is beautiful, easy to read and the timbre of Forster's writing voice is well worth listening to.
Finally, completing the fiction, I bought Terry Brooks's The Gypsy Morph in the Exclusive Books of Cape Town International Airport and finished it by the time I arrived in London (having sat in Doha for five hours twiddling my eyeballs). So yes, I had time to finish that. This book was the finale in Brooks's 'The Genesis of Shannara' trilogy. I am an old fantasy and sci-fi hack and I took pleasure in reading this book. This is good journeyman fantasy, decent battles, magic, elves, etc with a final resolution that ties together the world of a post-apocalyptic 'Earth' and that of Shannara. It was like a decent action movie: enough battles and thrilling events to keep the story moving, tied in with a worthwhile, if somewhat simple, plot. Perfect for hours in Doha waiting for my Qatar airways flight.
Non-fictionAnne Fadiman's Ex Libris: Confessions of a Common Reader is a collection of essays on bibliophiles and their behaviour, which is often profoundly strange, yet simultaneously entertaining and endearing. I am a bibliophile (hopelessly misunderstood by my parents in that respect - I love books and had to get rid of almost two bookshelves worth when I left the country to start my PhD - the horror, the horror (don't worry I didn't get rid of my Conrads), let it be known, though, that my parents allowed me to keep two bookshelves full of books in my old room). Anyway, Fadiman's book is fantastic, she ruminates on being a sesquipedalianist, she assesses the myriad ways we treat our books (I am a scribbler and write in both fiction and non-fiction books), she meditates on whether his'er would work as a substitute for his in the phrase to each his own (she concludes, emphatically, thankfully, that it would not). Fadiman's essay are witty and insightful. The book was a pleasure to read. My wife, who is possibly as bibliomaniacal (in the metaphorical rather than diagnostic sense) as I am, gave this to me as part of an anniversary gift. We truly are kindred spirits.
As promised previously, a comment on Malcolm Gladwell's Outliers warrants some space. There has been a fair amount of commentary on this book (which I don't feel like linking to, sorry). Gladwell brings together a host of case studies and various research to bring together his ideas about success. He argues that success is basically composed of luck and hard work. However, you also have to be lucky enough to realise that hard work is necessary for success, so that is also part of the luck component. Underpinning both of these, though, are institutional structures (my terminology), such as the cutoff dates at school, the transaction costs of changing from one school to another (low during the 50s and 60s, high now), the mobility between areas, and the recognition given to one group rather than another (i.e. to what extent race disadvantages you because of the institutional structures reinforcing your position). The book is interesting, but I didn't get anything substantially 'new' from it except for some case studies. The studies link the argument together well, but they don't really do anything to tell us about how to change the system, or how to change people's thinking about success, except to show them the evidence against them. Historically, this has not worked: many libertarians still seem to believe in absolute freedom of choice and that institutional constraints don't exist. The book is worthwhile because it brings academic debates to hoi polloi and will hopefully strengthen the understanding that individuals are constrained by history and luck and that 'ability' doesn't always just shine on through.Lastly, Alex Perry's Falling off the Edge is possibly one of the worst edited books of non-fiction I have read in a long time. This doesn't detract too much from his arguments about globalization, inequality and the dangers inherent in these, but seriously: repeated sentences, misspelled words, incorrect concord. Ahhh!!! I kept track until I lost the bookmark on which I was keeping track of the errors. The book is still worthwhile and I learned a hell of a lot about China, India and several other Asian countries, as well as some things that I didn't know about South Africa. I disagreed with some of Perry's more dire conclusions, such as the potential for a left-wing revolution to overthrow Asia's largest governments (China, India). Maybe I just hoped that these conclusions are wrong. I don't know enough about the countries he discusses to tell whether his arguments hold water or not. Anyway, give it a read, it's written in a reportage style (Perry being Time Magazine's African correspondent), with image plates thrown in to iron off the rougher edges. It falls into my 'racy' non-fiction category.
Next time
Graham Greene's The Quiet American, Ryszard Kapuscinski's The Shadow of the Sun and hopefully Roberto Bolano's 2666 once my order from Amazon arrives.
Thursday, January 29, 2009
Levitt (chanelling Venkatesh) for Ted
I just watched the TED talk below by Steve Levitt. In it he highlights some of his work with Sudhir Venkatesh (who regularly posts on the Freakonomics blog) about gang membership and the extent to which economic theory and the performance of crack-cocaine selling gangs coincides. Very interesting. HT: Mind Hacks.
Two points that brought it home for me, as a crack-selling foot soldier you have a greater chance of dying than someone on death row. Second, any black teenager living in the area (in their research inner city Chicago) has approximately double the probability of dying that a US soldier in Iraq has.
These statistics make me shudder when thinking what the equivalent probabilities must be for teenagers living on the Cape Flats.
Wednesday, January 28, 2009
Carnival of the Africans #6
The 6th Carnival of the Africans is being hosted by Angela who runs 'Skeptic Detective'. Here are my picks from the carnival.
Ivan, of a subtle shift in emphasis, tells the tale of his journey to atheism. He recounts the struggles of really understanding and relating to Christianity after seeing stark depictions of Jesus's torture and crucifixion in the Zeffirelli depiction thereof (in Jesus of Nazareth) and how this vivid experience was followed by catechism, mathematical and science education and more. Have a read, it's worthwhile.
Dr Spurt of Effortless Incitement relates some of the nuances of human tastes and how these relate to the symbolic experiences of what is being tasted (Pepsi vs. Generic cola say). Very interesting.
Mike Meadon reminds us that confusing hypnogogia for actual experiences is alive and well in personal tales of life and religion.
Two of my own posts, one on love and neuroscience and a recent one on the transitive brains of rhesus monkeys featured in the carnival.
Tuesday, January 27, 2009
Transitive Brains
A recent paper by Camillo Padoa-Schioppa and John Assad investigates the encoding of value in the brain for rhesus monkeys, a renewal of efforts to understand how and whether the assumption of transitivity, so crucial to the behavioral sciences, is in fact an accurate description of how individuals act when making choices. It builds on a previous paper (2006) of theirs in Nature, 'Neurons in the orbitofrontal cortex encode economic value.' The novelty in their (2008) research is that they provide evidence for value-encoding of juice consumption as menu-invariant, i.e. invariant to changes in the goods that are rank-preferred by the monkeys. I'm going to give you a brief summary and then make some points on where I'd be interested in seeing future research go.
There are three basic characteristics that they define. First, offer value responses which encode quantity or value of one or two offered juices (products). Second, chosen value responses which encode the value of the chosen juice (product) independent of the juice (product) type. Third, taste responses which are binary responses reflecting which one of two juices (products) are chosen independent of the amount of the juice (product). I have highlighted the notion of juice as product to foreground the idea of parallels between monkey juice consumption and the consumption of products by humans. Padoa-Schioppa and Assad assert that the second response, the chosen value response, is the most interesting because it is subjective and it ``represents a common unit for qualitatively different goods.'' (95) Their experimental methods are, thus, engaged with unearthing and isolating this chosen value effect. It is on this basis that we must assess their experimental methods and design.
The Experiment
The authors ran experiments with two (a male and a female) rhesus monkeys, measuring the neuronal output in the orbitofrontal cortex (OFC). The monkeys were prepared for the experiments using normal surgical procedures in preparation for neuronal recording. Juice was delivered to the monkeys in specifically measured quanta. The instructions, as such, that the monkeys were given were consistent with previous literature on the subject, with the monkeys selecting from a set of coloured squares indicating type and quantity of juice. The monkeys had an initial fixation point, after which a `go' signal was given: the introduction of two saccade targets adjacent to the coloured squares. Once the monkey had maintained fixation on the saccade target that they chose, juice would be delivered to them. Trials were aborted if the monkey broke fixation before the `go' signal. This procedure is highly detailed and thus easily replicable with appropriate resources.
Results
The theory was that there are three potential neuronal responses: offer value, chosen value and taste responses. The argument was that the Orbitofrontal Cortex (OFC) neurons have previously responded to delivery of a given juice depending on the context (Tremblay & Schultz
1999). However, that study did not assess whether these encoded responses were invariant to changes in menu. They designed an experiment in which they could isolate whether preference encoding is independent of menu choice and thus whether any (A,B,C) triple selected for an experimental session would allow for valid encoding of value in the OFC, value which would be consistent across menus. The crucial underlying distinction though is that the set of juices given fits the ranking A > B > C, with any one juice falling into a class A, B or C. This brings us to the question of how the juice rankings are derived, for which we do not have the data. Nevertheless, the final result was that 1 unit of an A class juice was equivalent to 1.3 units of a B class juice and one unit of a class B juice was approximately equivalent to 3 units of a class C juice. Finally, they showed that 1 unit of a class A juice was roughly equivalent to 4 units of a class C juice. Hence you have approximate value indifference (1 unit A = 1.3 x 3 ~= 4).
Thus the authors cover a broad base of theory related to preference transitivity and show that with distinct and well-defined preferences, values are encoded and the structure of these values reflects the mathematical conditions of value transitivity and indifference transitivity. This is very interesting and definitely warrants further research in other monkeys and for a larger sample of individuals, rather than it being some quirk of the two monkeys in the experiment.
Random Reflection
Would it not be cool, ladies and gentlemen, if instead of using disjoint sets of ranked goods they doing something that attempted to replicate what Simonson and Tversky (1992) (and most recently reinvigorated in Dan Ariely's book Predictably Irrational) discussed in house choice - seeing two potential consumption goods and then introducing what would be called an 'irrelevant alternative' in economic theory and seeing how the type of 'irrelevant alternative' (or the degree of similarity of the irrelevant alternative to one of the actual choices) affected value encoding. To me, this would bridge the gap from what would be a traditionally 'behavioral economics' assertion (for which we require, I believe, more evidence) and that of a good neurocellular economics discussion. A question for further research I suppose.
Reference
Camillo Padoa-Schioppa, John A Assad (2007). The representation of economic value in the orbitofrontal cortex is invariant for changes of menu Nature Neuroscience, 11 (1), 95-102 DOI: 10.1038/nn2020
Monday, January 26, 2009
Aid Watch
William Easterly, aid sceptic extraordinaire (note aid not AIDS), has started a blog: Aid Watch. I am often in disagreement with Easterly, but he does make decent points in his research about aid, about accountability and about guidelines for policy. He starts of his contribution to the blogosphere by commenting on two recent opeds by Robert Zoellick, the president of the World Bank. Easterly criticises Zoellick for his personal pet hate: aid for aid's sake, rather than for what the aid will do. Take a look.
Sunday, January 25, 2009
Lehrer on Decision-Making
Jonah Lehrer has a recent piece in the WSJ in which he comments on several books on decision-making as a lead up to the release of his upcoming book How We Decide. The problem I wanted to highlight with his article was a reference to the book by Daniel Kahneman, Paul Slovic and Amos Tversky, Judgment Under Uncertainty. Lehrer comments that, "in experiment after experiment, the psychologists demonstrated that, unlike the hypothetical consumers in economics textbooks, real people don't treat losses and gains equivalently."
This is factually incorrect. They did not run experiments, they administered questionnaires. They asked people how they would react as if they were to face a lottery over gains and as if they were to face a lottery over losses. They did not actually run the experiments to test whether people would act in the ways that they described in their seminal (1979) paper, 'Prospect Theory: An Analysis of Decision Under Risk'. To quote Kahneman and Tversky (1979, 264), "The demonstrations are based on the responses of students and university faculty to hypothetical choice problems." Again, not an experiment.
Subsequently, a number of their theories have been validated in the lab, but for a lot of their most famous results they did not run experiments, unless administering questionnaires has suddenly become experimental. Yes, in later papers they did run experiments, and, yes, for certain other research questions they ran experiments, but for the things that Lehrer comments on this did not, especially not prior to 1982. Even as late as 1992 some of Tversky's work was based only on questionnaires (by my count of the papers of his I know), similarly one of their most famous papers with Richard Thaler (1984) was based on questionnaires.
Note that for this I am not saying that questionnaires are useless, I just wanted to clarify that they are not experiments and thus that the norms for other economic experiments, i.e. actually using the monetary incentives involved, were not held to.
Anyway, the books to which he refers are all good. I have read the Ariely, some of the Thaler and some of the Kahneman, Slovic and Tversky. I just wanted to clarify that one point.
Robert Shiller - Recession Insurance
Robert Skidelsky - The Business Cycle Myth
Leigh Caldwell - Bounded Rationality and the Credit Environment
Barry Eichengreen - Was the Euro a mistake?
Luigi Zingales - Yes we can, Mr Geithner
Ricardo Caballero - A Global Perspective on the great financial insurance run: Causes, consequences and solutions (Part 1, Part 2)
Economics Generally
Jeff Sachs - A Breakthrough Against Hunger
Eliot Spitzer - America's Fear of Competition
Politics
Naom Scheiber - The Audacity of Data (actually on Obama policy, quite old now (March '08) but still very interesting)
Obama's Race Speech (also last year, but I recently re-read it and thought it worthwhile to reference)
Obama's inauguration speech
Other
Med Headlines - Coffee Today Keeps Dementia Away
Saturday, January 10, 2009
Love and Neuroscience
_____________________
Faaiza Asma at 18:24, on 10 January.
I agree..as sad as this is, we are just a walking talking bag of chemicals! Love isn't an otherwordly fantastic emotion inexplained by neuroscience and neurobiolgy. It diminishes as soon as the oxytocin levels and dopamine levels fall! *sadness*
Dennis Chu at 18:36, on 10 January.
yip, lust which we all agree is a product of hormones promotes human reproduction and love is simply another product of our hormones which improves the chances of partners staying together which improves the chances of successfully raising offspring. all in all, its all human nature ensuring the prorogation of our species!
Simon Halliday at 19:39, on 10 January.
I think that some of these comments are a bit over the top. The original Kosfeld et al (2005, Nature) paper on Oxytocin showed higher average and median 'trust'
levels for subjects given oxytocin in the Investment (Trust) Game. Their actions were also statistically different in the face of social interactions, rather than randomly determined choice sets. Kosfeld et al make the point of the relevance of social embeddedness of the decision process. Crockett et al's (2008, Science) paper showed that reductions in 5-HT serotonin increased rejection rates of highly unfair offers in the Ultimatum Game. Going from these very particular statements to 'all love is chemical' is, I believe, far too strong. Humans are not prairie voles.
Faaiza Asma at 20:27, on 10 January.
Working in the same research group as Molly Crockett, author of the Crockett et al paper mentioned, she showed that chemical manipulations of serotonin affect acceptence and rejection rates in the ultimatum game- that is correct. However, extending the same reasoning to the science of love, it is not too far-fetched and has been shown that chemical manipulations and varying levels of neurotransmitters in the brain do have a HUGE effect on 'love', particularly the initial infatuation stage - there are obviously differing reasons why we are initially attracted to someone- personality, appearance, pheromes etc. and these are in a large part attributed to neuroscience anyway BUT as for the continuation of these romantic feelings and the maintenance of them, we do owe alot of that to altering neurochemical levels in the brain, which go hand in hand to how intimately we feel towards that person at the time! but yes, we are a heck more sophisticated than prairie voles!
Simon Halliday at 22:14, on 10 January.
I was not contesting that Neuroscience & Neurobiology don't provide valid explanations, but rather what worries me is the overstatement of what we know about neurochemistry. I felt Young was overstating what we know from particular research (the Kosfeld stuff in particular), as do many in the popular press (and even academic presses, including some of my academic heroes) when they talk about potential parallels for the fairly narrow theory in the lab. I am not saying that generalizing theory is wrong, simply that we have to be careful.
I also agree that neurotransmitters and brain chemistry do tons (for example the Knoch et al (2006) DLPFC interruption paper - so cool! But I am wary of overgeneralizing and particularly overgeneralizing in the popular press.
By the way, it must have been SO COOL to work with Crockett on that paper. Feel the jealousy!
_____________________
I will let you know if more comments arise. I am very sceptical of overgeneralizing. I am aware of the politics of getting one's name and research published and I often worry about overstatement for aggrandization (à la the recent article in Science (I think) on 'overstatement of 'new' results' (can't remember which issue this was)). I am not saying that Young was doing this, but that it is the case that some people in the area of Neuroscience (Neuroeconomics, etc) overstate the potential parallels of their results. I refer, particularly, to the use of fMRI scans and interpreting scanning results.
______________________
Aside: I'd strongly recommend the recent special issue of the journal Economics and Philosophy late last year for some high quality reviews of the uses of Neuroeconomics. Don Ross (an ex-Professor of mine at UCT) offers some valid insights into the different classes of Neuroeconomics. Though I don't completely agree with him and his dismissal of most behavioural economics style neuroeconomics research, I am still deeply sceptical of the 'experiments + scanners = results' method.
First, the publication of Raymond Carver's Beginners before his editor (Gordon Lish) ripped up the text. I am a big fan of Raymond Carver, though I only own three of his short story collections (What We Talk About When We Talk About Love, Elephant and Cathedral) and I have read several of his poems (though I don't own any collections) I love his work. It is also interesting to chart the movement of his work and, particularly, the conflict between Carver and Lish over what constituted 'Carveresque' - a 'pared down' (as so many people say in those darn articles, personally I don't like the image of a paring knife too much, I'd rather going for another metaphor if possible). Anyway, you can read the title story of Beginners (Beginners) at the New Yorker. The New Yorker also had an insightful (2007) article, 'Rough Crossings: The Cutting of Raymond Carver' on the subject of the Carver-Lish antagonism. Good stuff.
Second, and of course, there is the UK release (finally) of Roberto Bolano's 2666, which has been sitting on my amazon wishlist for ages as I patiently awaited its UK release. Bolano's book received substantial praise in US book reviews. I hope to purchase this soon after it becomes available and give it some good reading time during my break. I will obviously provide you with my thoughts on it afterwards.
Kazuo Ishiguro also has a new release of short stories on music entitled Nocturnes: Five Stories of Music and Nightfall. I don't entirely know what to expect of this, but Ishiguro's writing is highly acclaimed. I have not read any of Ishiguro's short stories and so I shall look forward to this with anticipation.
Finally, there is Charlotte Roche's Wetlands which is the tale of a highly sexual 18 year old young woman. Variably described as 'porn', 'erotic literature' or simply 'explicit' the idea of the book titillates me. First, I am intrigued by explicit descriptions of violence or sex in literature, as exemplified by authors like Bret Easton Ellis and others. Second, I have an interest in understanding the role that erotica plays in contemporary society, both the writing of it and the reading of it. Erotica still has a 'dirty taste' for many people, which I believe it should not have. (Greta Christina regularly writes lucidly and entertainingly on this topic.) For this book, though, I may just wait for a second-hand copy purchased somewhere online. See this article in The Guardian on the UK battle for publication rights.
Friday, January 09, 2009
General
Google gives libraries a raw deal with new agreement
Ben Goldacre on Maggiore's Death
10 Lectures on Evolution (I will watch these, I promise, they look quite grand)
The Skepchick - 10 Speptics Who Kicked Ass in 2008
Marketing Geek - Kelele - An African Blogging Conference in 2009
Newsweek - 4 Thinkers Whose Ideas Captured the Moment (including Sunstein & Stiglitz)
Politics
Address by Yoweri Museveni to the UN (in September 2008, but I only came across it recently, HT: Chris Blattman)
Mahmood Mamdani - On Zimbabwe
Ban Ki Moon - Taking the Long View
Economics Generally
Duflo et al (Vox) - Can political affirmative action for women reduce gender bias?
Duncan Green - 10 Challenges to Business as Usual for Development Agencies
Duncan Green - Crystal Ball overviews on global security
Antonio Ciccone - Sudden Impoverishment as a Trigger of Civil Conflict
Credit Crisis
Hal Varian - Boost Private Investment to Boost the Economy
Martin Wolf - Keynes offers us the best way to think about the financial crisis
Robert Lucas Jr. - Bernanke is the best stimulus right now
Robert Frank - Should Congress Put a Cap on Executive Pay
Ed Glaeser - Who Should Get the federal funds stimulus?
Brad DeLong - Greenspan Roundtable
John Lippert - Friedman would be roiled as Chicago disciples rue repudiation
Economics and Darwin
Massimo Pigliucci - Economics learns from evolutionary biology
Paul Seabright - Darwin and the terrible games of homo sapiens
Video: Feldstein and Stiglitz on Charlie Rose
Thursday, January 08, 2009
To Potential Co-authors
David Laibson knows that when he procrastinates, mere deadlines are notArticle here. HT: Nudges.
always enough to get him going. So, when this Harvard economics
professor collaborates on a major project, he'll sometimes promise to
deliver a finished product by a certain date -- or else pay his
co-authors $500.
I think this is a fantastic idea. I think, though, that there should be an escape clause for genuine family emergencies, but otherwise it's a great idea. Potential co-authors take note.
Aside: How might I pre-commit to committing to this when I write papers? Would this be a good signal for potential co-authors? Interesting DPV and hyperbolic discounting questions here.
Wednesday, December 31, 2008
On the Carnival of the Africans #5
Michael of Irreverence shares a piece I had intended to comment on previously: 7 Myths about the SA Economy. I enjoyed his summary. I disagree with Cronin and Nzimande on the 'scientific' nature of Marx, but still believe that he made occasional relevant points (as exemplified in work by Stiglitz, Bowles and others).
The Skeptic Detective discusses an encounter with Tarot Reading. I used to have a Tarot Deck (I know, I know). I always thought the pictures particularly pretty and liked the mythological ties, but I gave up on the divinatory stuff a long time ago (forgive me). Anyway, the discussion is interesting and entertaining.
A blog I had not read previously, Ambient Normality, has a report on a Christian campaign for the death of Santa Claus as a "new Pagan god of Materialism." The blogger comments on how odd the double standard is, and, particularly, how odd the assertion that the 'true' reason for Christmas is the birth of Christ, rather than, say, the Winter Solstice (northern hemisphere). Brief and cutting.
Limbic nutrition gives a good bullet point summary on the riots in Greece. Worthwhile to read covering most of what you 'should' know about the riots.
Lastly, a comment from retroid raving on the state of Science in SA was enlightening. I am in the process of applying for funding from the NRF so I won't voice an 'actual' comment, except to say that I hope that they support me as an 'unrated' researcher.
Ok, that's enough for now. If I feel enlivened enough to escape from research and read some more blog posts I'll see what I can do later.
He keeps a photograph of his daughter on his cell phone screen. She is a beautiful little girl. He and two other Palestinian students in our PhD program are committed to improving their own lives and the lives of their compatriots in the Palestinian Territories. I sincerely hope they get the chance. I sincerely hope for a more unified and peaceful response from our world leaders. I hoped for more from Obama. I am glad the EU proposes peace and asserts that the solution cannot be military. I do not regularly comment on political strife in contexts other than those which are immediately pertinent to me as a South African, or as an economist, but in this context I hope simply for the end of killing, for an end to unequal responses.
For those who have not read it, I recommend this short piece on the current conflict, and the lead up to it, in the London Review of Books written by Sara Roy of Harvard's Center for Middle Eastern Studies.
Sunday, December 28, 2008
Carnival of the Africans #5
Owen Swart of 01 and the universe is hosting the fifth Carnival of the Africans. I have not read the pieces yet, but wanted to promote the carnival. Go and have a look. I will read and tell you of the posts that I enjoyed.
I admit that I have been quiet of late because of work and teaching summer term, but I hope to have a couple of interesting pieces on Neuroeconomics up for the next carnival (Mike hold me to this!).
Anyway, it is also necessary for me to update my African Sceptical and Scientific blogroll. Here they are, I will be adding them to my sidebar promptly:
- 01 and the Universe
- Acinonyx Scepticus
- Amanuensis
- Ambient Normality
- Effortless Incitement
- Ewan's Corner
- Ionian Enchantment
- Irreverence
- Limbic Nutrition
- The Little Book of Capoeira
- Other Things Amanzi
- Orion Spur
- Pause and Consider
- Pickled Bushman
- Prometheus Unbound
- psychohistorian.org
- Scorched
- The Science of Sport
- Stop Danie Krugel
- Subtle Shift in Emphasis
- The Skeptic Detective
- Timbuktu Chronicles
- Yet Another Sceptic's Blog
Friday, December 26, 2008
Al Roth comments on this (initially in reference to an article by Nicholas Kristof, but anyway), and, in general, I am with him. Read the Ashraf paper, she is an (upcoming) goddess of experimental development work - she did experimental economics work in SA a while back (J. Exp Econ, 2006 if I recall). Very cool lady.
Ok, back to work.
Tuesday, December 23, 2008
This Makes Me Happy
The UN general assembly signed in a declaration for the universal decriminalization of homosexuality. The action was opposed by the US, the Holy See and by a conglomeration of Islamic Countries.
Anyway, I understand that this kind of thing is not binding, but it is a step in the right direction for the promotion of LGBT rights. I am in favour.
See the article from the UN Dispatch here.
Friday, December 12, 2008
I have not commented on books that I have read for quite some time. Here are a few paragraphs on a selection of books that I've read since last posting on the topic.
Shakespeare by Bill Bryson: Bryson is always good to read and this book didn't disappoint. I reveled in the little anecdotes about the context in which Shakespeare wrote. I remain convinced (as Bryons is) that Shakespeare wrote the plays, but lament the fact that we don’t have more documentary evidence of his history and his literary ‘processes’. What made reading the book even more fun was the fact that I have met Stanley Wells, who Bryson regularly quotes in the book. He is based at the Shakespeare Institute where Amy (my wife) volunteered during her year in Stratford. He took a shining to her and, consequently, I have met him on several separate occasions. He took Amy and I to lunch when we were in Stratford during August. Paul Edmondson (who presided over our wedding) is also quoted a few times in the book, which made it even more entertaining to talk to Paul about speaking with Bryson about the book: this brought a double joy to the reading. Don't go in expecting a book about the plays, go in expecting a book about Shakespeare, his time and his England.
Talking It Over by Julian Barnes: A fantastic little novel which tells the stories three people (two men and a woman) who end up in a love triangle, each telling the story from their perspective as the narrative progresses. Barnes has a fantastic sense of humour and the voices of each of the characters is distinct and seems to encapsulate that character’s foibles, complexities and modes by which they interact with others. Very funny, and quite deeply satirises certain British stereotypes.
Daniel Martin by John Fowles: Is an epic novel that traces the steps of the title character from a brief retelling of his childhood, to his life as a student at Oxford, to his adult life as a screen- and playwright. The book drips with irony, and, rather like the Magus, you cannot believe that there are so many ways in which characters can interact, or threads by which the narrative can be extended. Still, it is a beautifully written novel, it captures a sense of what it must have been like to be a British scriptwriter or author in the US in Los Angeles, but still retaining an essential Britishness that cannot, or is not, adequately understood by many (North) Americans. It is also interesting because during the writing Fowles often goes on philosophical tangents: he tries to navigate an understanding of the conflicts of capitalism and socialism, something in which I am deeply interested, as well as problems of aesthetics, such as whether art should be instructive or not. It is a challenging, fantastically written and epic novel. It makes me want to retrace the routes that the characters do to remote places in the US, certains spots in the UK (yes the UK does have remote beautiful areas) and also Egypt. I'd give this book a big thumbs up if you can deal with his occasional over-writing.
Song of Solomon by Toni Morrison: I enjoyed this book far more than I
enjoyed the previous book of hers that I read, Beloved. Beloved was very well-
written and understandably lauded (for example the New York Times did a survey of American authors and they voted it as the best American novel of the past 25 years). However, I found the writing style of Song of Solomon easier to read, as well as finding it more manageable in terms of the characters and narrative Morrison introduced. The main character’s name is Macon Dead, an African American growing up in the US during the period spanning the 1940s to 60s. Morrison tells his life: how his experience, as the son of an African American who owns property is both an intrinsically African American experience, but also distinctly not African American in the advantages that he has because of his father being a property owner. Combine this with a backdrop of odd family members, a narrative that takes you back to his grandparents and their tale and the book makes for riveting reading - it's a window into the paradoxed of African American life in 20th Century USA.
Divisadero by Michael Ondaatje: I picked this up in Borders Bookstore in Heathrow's Terminal 3 to read on my flight back to Cape Town. I read about half of it on the flight, distracted by action movies, mindless entertainment and the copy of Malcolm Gladwell's Outliers that I have on my ipod (not quite finished more on that book another time). Anyway, this book is somehow caressingly written, as if Ondaatje is drawing you in with the lyrical nature of his writing, drawing you in to the stories of how people love one another, how it damages them, how it helps to construct who they are. This is the second novel of his that I have read (The English Patient was my first, glorious delving into Ondaatje's fiction) and it contrasts oddly with his poetry, which I find to be more comical and more playful, definitely more playful with respect to how he treats and interacts with words. Nevertheless, this book is wonderful and now that it is in soft-cover it constitutes a good gift to the Ondaatje uninitiated.
Predictably Irrational by Dan Ariely: This book constitutes a fun introduction to a fairly limited draw of modern experimental economics and social psychology, the barried between the two is quite small with respect to what Ariely does as I would not always call what he does 'experimental economics'. Although I think that Ariely does some intriguing and worthwhile work, he suffers from the experimentalists Achilles' Heel (in my mind) in that he overstates the parallelism, or generalizability, of the results that he obtains in small-scale and localized experiments. I don't believe that he gives sufficient credence to cultural difference, or to heterogeneity of individual responses. That being said, I would recommend this book to most critical thinkers as it restates many examples of how we, as humans, thinking irrationally and do it in a predictable manner. For as many overly general or slightly inaccurate statements that he makes, Ariely makes many more that are worthy of our consideration in modern economics and psychology, especially in the contemporary crisis-wracked world.
Experimental Methods: A Primer for Economists by D. Friedman and S. Sunder is a book from which I read a chapter or two for a course on decision theory and behavioral economics. I decided to read the book and found it very valuable. Most of my reading in experimental economics has tended towards individual decision-making and individual preferences, the book, though quite dated (published in 1994) now in terms of the field, but is still a classic. They have a significant focus on market, auction and asset-market experiments with barely a mention of preference-based experiments, yet they provide general guidelines for conceiving and implementing experiments, data analysis and writing up that are very valuable. The book is an easy read and I found it worthwhile considering how I want to undertake experiments as part of my disseration research.
Otherwise, I am reading a book of Italian Short Stories, Gladwell's Outliers as mentioned, a book on Italian History, and another on neuroeconomics, in addition to which I am still doing my best to read Adam Smith's The Theory of Moral Sentiments when I have the time (and the patience). Oh yes, I also forgot to mention reading the inestimable 'On Liberty', but I don't believe that I can add much to criticisms or laudatory remarks on that book as it really is one of the great texts in philosophy (or so I believe, whether you disagree with its conclusions or not). Sherbet, I also realise I read Marx and Engels's Communist Manifesto for the first time, I found it interesting with some of the content agreeable and other content particularly disagreeable, but I suppose that was bound to happen. I know I am forgetting others, but this will have to do for now.
Tuesday, December 09, 2008
Positive Feedbacks
Not necessarily what I will get from my students after prescribing them actual (shock! horror!) reading for ECO2003P, but hey. Anyway, the reason I mention this is that while lecturing in Intermediate Micro one of the subjects that I cover with the students is that of monopoly power through network externalities, increasing returns, lock-in and specific, or irreversible, investment. The discussion is based on two articles both very easy to read:
W. Brian Arthur, 'Positive Feedbacks in the Economy', Scientific American, Feb 1990.
Paul A. David, Clio and the Economics of QWERTY, AER, May 1985.
I am hoping to get some lights on in the minds of some of the kids by doing a question-based discussion of the papers. I want them to engage with the readings and come up with their own ideas, I know such intentions may be naive but I remain optimistic. Even if only 1-5 of the 65 students gains some insight and some ability to think better about the world as a consequence of the discussion (rather than a straight up lecture) then I will be happy. In fact, I am guaranteed at least one with a bright and engaging student who I see is getting a fair amount from my lecturing, but I am hoping to get more than four more students to have something more than crepuscular lights going on in their heads.
Does anyone have specific ideas for South African situations of lock-in, network effects resulting in monopoly and irreversibility of investment resulting in monopoly type market dominance?
Monday, December 08, 2008
Back in CT
So after some time travelling, arriving back in SA, going up to Plett for a few days and then arriving back in Cape Town I am now lecturing ECO2003P, intermediate microeconomics, for the Summer Term at UCT. Joy! Well at least it pays for flights and a bit more.
Anyway, my hiatus was as a consequence of said travels. Coming back to SA has been surprising in terms of realising the effects of inflation, but also talking to people who are remarkably positive about the future of the country, as well as (overly?) optimistic about the economic potential of South Africa. I had one of the secretaries in the department ask me if I didn't want to stay on to lecture this same course during the semester, as much as I would love to I need to complete my PhD else no employment for the white male in SA in an academic institution. Note that this is said with no sense of unjustness, but simply a statement of fact. I cannot think of how any (economics) department in South Africa could offer a white male anything resembling a permanent position without them having a worthwhile PhD and some publications. Hence, I will apply to UCT when I am approaching the end of my PhD and I have some job market papers, in the meant time ad hoc work if and when they need me!
So yes, if you are in Cape Town or the vicinity and would like to see me then give me a shout. I look forward to hearing from you. I'll try to keep up a semblance of blogging even though I am teaching. Maybe I will be inspired by my minions (read students) to deal with interesting questions. Or maybe not.
