The Allais Paradox is one of the most enduring violations of expected utility theory, a hallmark theory of economics. Professor Mike Shor and coauthor Mark Schneider (a recent UConn PhD) have had their paper “The Common Ratio Effect in Choice, Pricing, and Happiness Tasks” accepted by the Journal of Behavioral Decision Making.

In the paper, Professor Shor elicits preferences for the Allais paradox choice alternatives using three different methods: traditional choice, monetary valuation, and subjective happiness ratings. He finds that both the consistency and distribution of responses differs systematically across different elicitation methods, with modal choices replicating the Allais preference pattern, modal happiness ratings exhibiting consistent risk aversion, and modal valuations maximizing expected value. The paper finds support for a dual process framework in which people use either a “logical” or an “intuitive” thinking process depending on the task.