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Implicit and Explicit Commitment in Credit and Saving Contracts: A Field Experiment


  • Uzma Afzal
  • Giovanna D'Adda
  • Marcel Fafchamps
  • Simon R. Quinn
  • Farah Said


We conduct a field experiment to test the demand for flexibility and for soft and hard commitment among clients of a microfinance institution. We offer a commitment contract inspired by the rotating structure of a ROSCA. Additional treatments test ex ante demand for soft commitment (in the form of reminders), hard commitment (in the form of a penalty for missing an installment), and flexibility (an option to postpone an installment). Our design is unique in the literature for allowing us to test — using the same respondent population — how demand for explicit commitment features differs between loan and savings contracts. We find substantial demand for both credit and savings contracts but no demand for additional commitment features — either in isolation or in combination — in spite of their effectiveness in improving repayment. In particular, demand for savings is insensitive to explicit commitment features. Individuals offered loans actively dislike commitment and flexibility, unless the latter is combined with reminders. These findings complement a literature showing that commitment devices induce financial discipline. They show that demand for commitment depends on whether commitment features are implicit or explicit.

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  • Uzma Afzal & Giovanna D'Adda & Marcel Fafchamps & Simon R. Quinn & Farah Said, 2019. "Implicit and Explicit Commitment in Credit and Saving Contracts: A Field Experiment," NBER Working Papers 25802, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:25802
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    JEL classification:

    • G02 - Financial Economics - - General - - - Behavioral Finance: Underlying Principles
    • O16 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Financial Markets; Saving and Capital Investment; Corporate Finance and Governance

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