On the Common Claim that Happiness Equations Demonstrate Diminishing Marginal Utility of Income
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.
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- Richard Easterlin, 2005. "Diminishing Marginal Utility of Income? Caveat Emptor," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 70(3), pages 243-255, 02.