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Quote by Kenneth Arrow

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Kenneth Arrow
Kenneth Arrow

Kenneth Arrow, born on August 23, 1921 in New York, USA, was a distinguished economist. He made significant contributions to the field of economics, particularly in general equilibrium theory and welfare economics. Arrow was awarded the Nobel Prize in Economic Sciences in 1972 for his pioneering contributions to the economic sciences. more

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“There is a bit of a problem with the match between derivative securities markets and the primary markets. We have long ago instituted principles, essentially high margin requirements, to prevent certain instabilities in the stock market, and I think they're basically correct. The trouble is that there's a linkage, let's say, between something like the stock market and the index futures markets, and the fact that the margin requirements are very different, for example, played some role in the October '87 crash.”

“When you look at any experimental work not directly related to economics, but trying to test rational behavior in other ways, experiments have conspicuously failed to show rational behavior. Macro evidence certainly suggests deviations from rationality, but I don't want to say the rationality hypothesis is completely wrong. If you have any introspective idea or experimental idea about people's behavior, it seems to be incompatible with the really full scale rational expectations.”