Envy affects economic decisions, and can lead to monotonicity violation. We introduce co-monotonicity-a generalization of monotonicity, expected to hold even in the presence of envy. Experimental results and implications for the form of possible utility functions are discussed.
Bibliographical noteFunding Information:
I am grateful to the anonymous referee for very helpful comments and suggestions. Financial support from the Zagagi Fund is gratefully acknowledged. I thank Poly Beker for excellent research assistance.
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