Document Type

Article

Publication Date

10-9-2021

Abstract

Behavioral scientists have reported substantial increases in worker productivity when incentives are framed as losses rather than gains. Loss-framed incentive contracts have also been reported to be preferred by workers. These claims are challenged by results from our meta-analysis and real-effort experiment. Whereas the summary effect size from loss-framed contracts in laboratory experiments is a 0.4 SD increase in productivity, the summary effect size from _eld experiments is 0.0 SD. Although this difference may reflect differing labor environments in the laboratory and field, we detect evidence of publication biases among laboratory experiments. In a new laboratory experiment that addresses prior design weaknesses, we estimate an effect size of 0.1 SD. This result, in combination with evidence from the meta-analysis, suggests that the difference between the effect size estimates in published laboratory and field experiments does not stem from the limited external validity of laboratory experiments, but may instead stem from a mix of underpowered laboratory designs and publication biases. Moreover, in our experiment, most workers preferred the gain-framed contract and the increase in average productivity is only detectable in the subgroup of workers (⁓20%) who preferred the loss-framed contracts. This result suggests that employers may find using these contracts in real labor environments challenging. Based on the results from our experiment and meta-analysis, we believe that further research is warranted to assess the robustness and magnitude of the impacts from loss-framed contracts before advocating for their adoption by private and public sector actors.

Comments

ESI Working Paper 21-20

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