Changes in discount rates over time: Evidence from Ethiopia
Numerous experimental studies have lent credence to the hyperbolic discounting model, which posits that individuals are impatient about immediate or near-term consumption decisions, but are relatively more patient over future consumption.
Experiments documenting this behaviour found that subjects often preferred, for instance, to receive $1 today, rather than $2 a month from now, but they also preferred $2 in 13 months over $1 in 12 months. Few studies have examined inconsistent time preferences in developing countries, where discount rates are more likely to diverge from market interest rates due to pervasive capital market imperfections. Levitt and List (2007) highlighted the importance of complementing lab studies with evidence from field experiments.
Co-author
Heather KlemickFiles
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Centers
- ethiopia
Type of publication
- Policy brief
Reference
Klemick, H., and Yesuf, M., 2008 “Do Discount Rates Change over Time? Experimental Evidence from Ethiopia” Discussion Papaer Serier, EfD DP 08-06, Enviornment for Development (EfD), Gothenburg, Sweden.Publications
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