Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/223848
Authors: 
Cheung, Stephen L.
Tymula, Agnieszka
Wang, Xueting
Year of Publication: 
2020
Series/Report no.: 
IZA Discussion Papers 13406
Abstract: 
Economists model self-control problems through time-inconsistent preferences. Empirical tests of these preferences largely rely on experimental elicitation methods using monetary rewards, with several recent studies failing to find present bias for money. In this paper, we compare estimates of present bias for money with estimates for healthy and unhealthy foods. In a within-subjects longitudinal experiment with 697 low-income Chinese high school students we find strong present bias for both money and food, and that individual measures of present bias are moderately correlated across reward types. Our experimental measures of time preferences over money predict field behaviours better than preferences elicited over foods.
Subjects: 
self-control
quasi-hyperbolic discounting
present bias
adolescents
food rewards
JEL: 
C91
D12
D80
D91
Document Type: 
Working Paper

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