Sunday, June 22, 2003, 12:00 A.M. Pacific
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The economics of emotion
By Victoria Thieberger
CHATHAM, Mass. — Say you're going to come into a sum of money. Would you rather get $3,000 next week, or $3,800 in a couple of months?
Well, that depends on whether you just ate a bag of candy, according to a recent study.
Researchers gave a bag of sweets to two groups of people and asked them that question.
Those who were allowed to eat the candy first and then answer the question were quite happy to wait for the extra cash.
The ones who had to answer the question before eating the candy opted to take the smaller sum of money rather than wait.
Studies such as these, which focus on how human behavior and emotions affect people's economic choices, are part of a rapidly growing field known as behavioral economics.
It challenges one of the fundamental principles of economic theory: that people are perfectly rational and always act in their best economic interests. And it has sweeping implications for how policymakers view the economy.
Naturally, none of this is news in fields like advertising that play on emotions as a matter of course.
"Emotions have the capacity to turn us into virtually different people — spendthrifts or tightwads, among other things," said George Loewenstein, the professor at Carnegie Mellon University who worked on the study.
And that makes people's behavior especially hard to predict for economists trying to divine pressing questions such as where consumer spending is headed, or whether Americans are more likely to spend or save the latest round of tax cuts.
For the first time, the U.S. central bank, the Federal Reserve, has declared an interest in behavioral economics, which not that long ago was considered heretical by mainstream economists.
The Boston Federal Reserve Bank, one of 12 regional Fed banks, recently held its annual conference on the topic of "How Humans Behave — Implications for Economics and Policy."
The gathering brought together an eclectic mix of psychologists, anthropologists, sociologists and economists, as well as officials from four regional Fed banks and the central bank's headquarters in Washington.
For two days they pored over MRI scans of the brain and discussed dozens of laboratory studies in which people make irrational economic choices.
"Behavioral economists have discovered the wild side of macroeconomic behavior," said Boston Fed President Cathy Minehan.
Initially, that came at some personal cost. One of the leading lights of the field, Richard Thaler, recalls being shunned by colleagues for his revelation to other economists that people don't behave like the textbooks say they should.
The new breed of economists are in fact rediscovering a long-ignored side of human behavior: Adam Smith discussed these themes in his 1759 work "The Theory of Moral Sentiments."
Last year, the Nobel Prize in economics went to one of the pioneers among behavioral economists, Princeton University psychologist Daniel Kahneman.
In other professions, of course, from Madison Avenue to Capitol Hill, messages that play on emotions have been standard fare for decades. Economists are starting to get the point.
The challenge now is making connections between the research, which draws heavily on psychology and the social sciences, and the economy at large.
Some behavioral economists say policymakers should give more weight to consumer sentiment surveys, which ask people questions about current and future economic conditions and their spending plans.