Co-monotonicity: Toward a utility function capturing envy

Moshe Levy*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


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.

Original languageAmerican English
Pages (from-to)16-19
Number of pages4
JournalEconomics Letters
Issue number1
StatePublished - Jan 2012

Bibliographical note

Funding 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.


  • Competitive preferences
  • Envy
  • First order Stochastic Dominance
  • Keeping up with the Joneses
  • Monotonicity


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