That’s the title of a new essay by the omnipresent David Levine. An excerpt:
The key difference between psychologists and economists is that psychologists are interested in individual behavior while economists are interested in explaining the results of groups of people interacting. Psychologists also are focused on human dysfunction – much of the goal of psychology (the bulk of psychologists are in clinical practices) is to help people become more functional. In fact, most people are quite functional most of the time. Hence the focus of economists on people who are “rational.” Certain kinds of events – panics, for example – that are of interest to economist no doubt will benefit from understanding human dysfunctionality. But the balancing of portfolios by mutual fund managers, for example, is not such an obvious candidate. Indeed one of the themes of this essay is that in the experimental lab the simplest model of human behavior – selfish rationality with imperfect learning – does an outstanding job of explaining the bulk of behavior.

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June 22, 2009 at 8:45 am
Behavior economics « MAHB Sustainability Initiative
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June 22, 2009 at 9:39 am
carmichael
Since we are using the idea of behavior, which has some baggage good and bad, this review helps undersand the issues in its use.
https://cheeptalk.wordpress.com/2009/06/21/is-behavioral-economics-doomed/
Here are a few excerpts with notes by me
“The modern paradigmatic man (or more often these days woman) in moderneconomics is that of a decision-maker beset on all sides by uncertainty. Our central interest is in how successful we are in coming to grips with that uncertainty.”
Note how this is lets say anthropologically a very poor description. Each person is embedded in a culture, and under conditions of uncertainy is more likeleytto turn to the culture, meaing, group solidarity and identity, than to individual coping. So the author downplays the role of culture and plays up the fragmented individual.
“One of the most widespread empirical tools in modern behavioral economics is the laboratory experiment in which people – many times college undergraduates, but often other groups from diverse ethnic backgrounds – are brought together to interact in artificially created social situations to study how they reach decisions individually or in groups. Many anomalies with theory have been discovered in the laboratory – and rightfully these are given emphasis among practitioners, as we are most interested in strengthening the weaknesses in our theories. However, the basic fact should not be lost that the theory works remarkably well in the laboratory.”
The lab where strangers are brought together ( undergarduates at the host institution) hardly represents a normal social situation. it stips out relationshps and those in the experiment have no way of reaching out to each other or to support for background culture, both of which are much more present in real world interactions. Confusion comes becaus emodern society increasingly fragments and isolates people as consumers rather than groups them in communities as citizens.
“The heart of modern “rational” economic theory is the concept of the Nash (ornon-cooperative) equilibrium of a game. A game is simply a careful description of a social situation specifying the options available to the “players,” how choices among those options result in outcomes, and how the participants feel about those outcomes.”
Here “social situation” is the aggregate of isolated individuals who can only play by the games rules. As we think about “sustainability” these underlying issues of fargmented social rality approximated by game theory will require careful thought. If you thought that psychological understanding might help, look at ho Levine undermines the psychological perspective.
“The key difference between psychologists and economists is that psychologists are interested in individual behavior while economists are interested in explaining the results of groups of people interacting. Psychologists also are focused on humandysfunction – much of the goal of psychology (the bulk of psychologists are in clinical practice).”
There are two key thoughts here. First note how he has made economics social and psychology individual, though, as we have seen, the standard approach in economics is to the individual treated statistically as a stand-in for social/culturally embedded humans. Second, he equates psychologist with inters in dysfunction. This is an unfortunate trend in psych, to treat of dis-order. But any real theory of disorder must have a theory of order, which is a deeply political notion, as in “the well-ordered society” of John Adams circa 1800, and missing in psych theory that is pathology oriented.
These themes of order-disorder, rational, isolated, game, rules and persons, culture and meaning, will be central to understanding culture and society for sustainability.
June 22, 2009 at 10:31 am
michaelwebster
I was disappointed that Levine didn’t tackle head on the problem of invariance, which I think will be the lasting academic accomplishment of Tversky and Kahneman, not prospect theory which makes very little sense.
June 22, 2009 at 12:31 pm
Barkley Rosser
There is a lot of cherry picking and distortion in this article. “Rationality” is defined as Nash equilibrium behavior, but in many situations there are multiple Nash equilibria. Duh. Also, quantal response equilibria are invoked, but it is well known that almost anything can be explained via QRE. A few examples are provided (correctly) of situations where ratiional theory provides narrower predictions that are correct, such as the rapid convergence of double auctions to competitive equilibria, but otherwise there is a lot of cherry picking and distortion.
We are told that ultimatum games are explained by QRE, but the average offer on UGs is 40%. This is very far from the standard NE of epsilon above zero. We are told about the Plott-Zeiler critique of the WTA-WTP data, but there have been critiques of their critique, and the really solid support for the disjuncture comes from masses of field data going back to the 1970s, much of it on environmental public goods, not on these silly experiments about coffee cups being given to students.
Needless to say, there are many phenomena that are ignored, such as the ubiquity of hyperbolic discounting. This is perhaps covered in the discussion of how “impulsive” behavior may be “rational,” with goofy examples from Spitzer and Limbaugh supposed to convince (they were planning ahead and hence were not impulsive). In fact, hyperbolic discounting seems to arise from different parts of the brain operating, with lower levels more likely to bring on impulsiveness (I want that food, sex, pleasure NOW!). The real alternative here is not theirs, but one of expanding the definition of “rationality” so that indeed from an evolutionary perspective it may be “rational” to be impulsive sometimes, and have hyperbolic discounting, even if this leads to the irrational sin of time inconsistency, which would violate rational expectations (but then, the data does not support ratex anyway).
June 22, 2009 at 1:16 pm
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June 23, 2009 at 1:01 am
rbhui
I have to agree with Barkley Rosser, and further note that the evolutionary and biological perspective is the next step that we ought to take. It provides us with a basis for a wackload of theory and empiricism — a basis which is THE fundamental basis for economics and the behavioural and social sciences in general. Some potential roots have been found for certain prospect theory attributes. For instance, the pattern of risk attitudes resembles an optimal foraging rule (cf. Stephens’ 1981 Z-score model). This is not to say that orthodox methods or perspectives will be replaced by biology, but certainly we should strive to understand economics in a biological and evolutionary light.
June 23, 2009 at 1:07 am
kevindick
Uh, I’m an economics guy but even I know that this characterization of psychology is a caricature. The branch of psychology applied to behavioral economics is cognitive psychology. That has nothing to do with dysfunction, which is the purview of clinical psychology. They are rather distinct areas of study.
In particular, “balancing of portfolios by mutual fund managers” is precisely the type of complex cognitive tasks studied by many cognitive psychologists.
Moreover, there’s also the field of social psychology which has to do with the behavior of people in groups. It uses experimental methods fairly similar to those of cognitive psychology.
So Levine is attacking a straw man.
It would
June 23, 2009 at 4:20 am
Etl World News | Assorted links
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June 30, 2009 at 12:50 am
More Signs of the Demise of Behavioral Economics? « Cheap Talk
[…] 30, 2009 in Uncategorized | by sandeep As Jeff pointed out in an earlier post, David Levine thinks rational choice theory is remarkably successful and that behavioral economics […]
November 24, 2009 at 6:32 pm
mh
Psychologists are concerned with many different things, actually. Of particular interest to almost every psychologist–and social psychologists especially– is how groups of people interact.
October 4, 2010 at 5:05 pm
EvottSope
Whats up everyone
I just became a part of this site….
I really love the environment here. .
Today I got a IM from my wife via one of my gmail.
http://blogmasterworld.info/blog/2010/08/12/best-ways-to-lower-blood-pressure-without-medications/
. is it some kind of virus or something?
November 3, 2014 at 11:16 pm
Is Behavioral Economics Doomed? | Cheap Talk | Utopia - you are standing in it!
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