How are Preferences Revealed?
Revealed preferences are tastes that rationalize an economic agent's observed actions. Normative preferences represent the agent's actual interests. It sometimes makes sense to assume that revealed preferences are identical to normative preferences. But there are many cases where this assumption is violated. We identify five factors that increase the likelihood of a disparity between revealed preferences and normative preferences: passive choice, complexity, limited personal experience, third- party marketing, and intertemporal choice. We then discuss six approaches that jointly contribute to the identification of normative preferences: structural estimation, active decisions, asymptotic choice, aggregated revealed preferences, reported preferences, and informed preferences. Each of these approaches uses consumer behavior to infer some property of normative preferences without equating revealed and normative preferences. We illustrate these issues with evidence from savings and investment outcomes.
The authors are grateful to participants at the "Happiness and Public Economics Conference" for their feedback, particularly Alan Manning. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.
Beshears, John & Choi, James J. & Laibson, David & Madrian, Brigitte C., 2008. "How are preferences revealed?," Journal of Public Economics, Elsevier, vol. 92(8-9), pages 1787-1794, August. citation courtesy of