Markus K. Brunnermeier
email: markus@princeton.edu  
web:   http://www.princeton.edu/~markus

 

Learning to Re-optimize Consumption at New Income Levels: A Rationale for Prospect Theory
Reference: Journal of the European Economic Association, (2004), 2(1), 98-114.
Abstract: This paper provides a theoretical rationale for three experimental results of Prospect Theory: risk preferences are over gains and losses, loss aversion and diminishing sensitivity. We consider a (boundedly rational) decision maker who does not find her new optimal consumption bundle with certainty when she is faced with a new income level. This alters her indirect utility function and makes her more risk averse at her current reference income level and less risk averse for a range of incomes below her reference income level.
Keywords: Risk Aversion, Loss Aversion, Bounded Rationality, Behavioral Economics