TY - RPRT AU - Oswald, Andrew J. TI - On the Common Claim that Happiness Equations Demonstrate Diminishing Marginal Utility of Income PY - 2005/Sep/ PB - Institute of Labor Economics (IZA) CY - Bonn T2 - IZA Discussion Paper IS - 1781 UR - https://www.iza.org/index.php/publications/dp1781 AB - It is commonly claimed in the recent happiness literature in psychology and economics that we have proved diminishing marginal utility of income. This paper suggests that we have not. It draws a distinction between concavity of the utility function and concavity of the reporting function. KW - happiness KW - money KW - marginal utility KW - curvature KW - concave ER -