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Habit formation, obesity, and cash rewards

Boris Augurzky, Thomas Bauer (), Arndt Reichert (), Christoph Schmidt and Harald Tauchmann ()

No 06/2018, FAU Discussion Papers in Economics from Friedrich-Alexander University Erlangen-Nuremberg, Institute for Economics

Abstract: This paper examines weight loss and the formation of healthy habits through cash rewards in the context of a multi-phase randomized controlled trial involving 700 obese individuals. We find effects of monetary incentives for weight loss of up to EUR 300 on body weight during all experimental phases, including a period of a year and a half following the exposure to the financial rewards. We also find effects on healthy behavior during this follow-up phase. After the initial incentive period, we additionally provided participants who had lost a substantial amount of weight with monetary rewards of up to EUR 500. These had only short-term effects on body weight and healthy behavior. We argue that our findings are best explained by monetarily incentivized participants having formed healthy habits by the time the experiment ended and that only the speed of the transition to the new (health) equilibrium was affected by the additional rewards. Contrary to the pessimistic perspective presented in earlier empirical research on habit formation, our results suggest that a simple program relying on weight loss rewards can result in long-term health behavioral change.

Keywords: field experiment; obesity; healthy behavior; habit formation; sustainability; monetary incentives (search for similar items in EconPapers)
JEL-codes: I12 I18 D03 C93 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cbe, nep-exp and nep-hea
Date: 2018
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