Tying Odysseus to the Mast: Evidence from a Commitment Savings Product in the Philippines
AbstractWe designed a commitment savings product for a Philippine bank and implemented it using a randomized control methodology. The savings product was intended for individuals who want to commit now to restrict access to their savings, and who were sophisticated enough to engage in such a mechanism. We conducted a baseline survey on 1777 existing or former clients of a bank. One month later, we offered the commitment product to a randomly chosen subset of 710 clients; 202 (28.4 percent) accepted the offer and opened the account. In the baseline survey, we asked hypothetical time discounting questions. Women who exhibited a lower discount rate for future relative to current trade-offs, and hence potentially have a preference for commitment, were indeed significantly more likely to open the commitment savings account. After twelve months, average savings balances increased by 81 percentage points for those clients assigned to the treatment group relative to those assigned to the control group. We conclude that the savings response represents a lasting change in savings, and not merely a short-term response to a new product. Copyright (c) 2006 by the President and Fellows of Harvard College and the Massachusetts Institute of Technology..
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Bibliographic InfoArticle provided by MIT Press in its journal Quarterly Journal of Economics.
Volume (Year): 121 (2006)
Issue (Month): 2 (May)
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Web page: http://mitpress.mit.edu/journals/
Other versions of this item:
- Nava Ashaf & Dean Karlan & Wesley Yin, 2004. "Tying odysseus to the mast: Evidence from a commitment savings product in the philippines," Natural Field Experiments 00206, The Field Experiments Website.
- Nava Ashraf & Dean S. Karlan & Wesley Yin, 2005. "Tying Odysseus to the Mast: Evidence from a Commitment Savings Product in the Philippines," Working Papers 917, Economic Growth Center, Yale University.
- C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments
- D01 - Microeconomics - - General - - - Microeconomic Behavior: Underlying Principles
- D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
- D12 - Microeconomics - - Household Behavior - - - Consumer Economics: Empirical Analysis
- D14 - Microeconomics - - Household Behavior - - - Household Saving; Personal Finance
- D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
- D - Microeconomics
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