Richard Thaler ou comment la finance est devenue comportementale

Marie-Hélène Broihanne and Gunther Capelle-Blancard

Revue d'économie politique, 2018, vol. 128, issue 4, 549-574

Abstract: Richard Thaler is a leading economist, a bold and original researcher. Professor at the University of Chicago, the centre of economic orthodoxy, where Milton Friedman and Eugene Fama spent most of their career, he is one of the most relevant critics of the efficient market hypothesis. His works in finance, often of great simplicity, changed the dominant paradigm. While there are few arbitrage opportunities in financial markets, they do exist and may be persistent. Rational investors do not always have the last word and prices often tend to over- or under-react to information. It is always particularly difficult to ?beat the market?, even for knowledgeable practitioners, but asset prices do not fully capture the fundamentals and speculative bubbles are common. In short, the markets are not crowded with homo oeconomicus, but homo sapiens.

Keywords: behavioral finance; rationality; efficient market hypothesis (EMH); arbitrage; Chicago school of economics (search for similar items in EconPapers)
Date: 2018
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