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Behavioral Economics And Investor Protection: Reasonable Investors, Efficient Markets, Barbara Black
Behavioral Economics And Investor Protection: Reasonable Investors, Efficient Markets, Barbara Black
Faculty Articles and Other Publications
The judicial view of a “reasonable investor” plays an important role in federal securities regulation, and courts express great confidence in the reasonable investor’s cognitive abilities. Behavioral economists, by contrast, do not observe real people investing in today’s markets behaving as the reasonable investors that federal securities law expects them to be. Similarly, the efficient market hypothesis (EMH) has exerted a powerful influence in securities regulation, although empirical evidence calls into question some of the basic assumptions underlying EMH. Unfortunately, to date, courts have only acknowledged the discrepancy between legal theory and behavioral economics in one situation, class certification of …