The Social Discount Rate : Estimates for Nine Latin American Countries
The social discount rate measures the rate at which a society would be willing to trade present for future consumption. As such it is one of the most critical inputs needed for cost-benefit analysis. This paper presents estimates of the social disc...
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Language: | English |
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World Bank, Washington, DC
2012
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Online Access: | http://documents.worldbank.org/curated/en/2008/06/9493488/social-discount-rate-estimates-nine-latin-american-countries http://hdl.handle.net/10986/6659 |
Summary: | The social discount rate measures the
rate at which a society would be willing to trade present
for future consumption. As such it is one of the most
critical inputs needed for cost-benefit analysis. This paper
presents estimates of the social discount rates for nine
Latin American countries. It is argued that if the recent
track record in terms of growth in the region is indicative
of future performance, estimates of the social discount rate
would be in the 3-4 percent range. However, to the extent
that the region improves on its past performance, the social
discount rate to be used in the evaluation of projects would
increase to the 5-7 percent range. The paper also argues
that if the social planner gives a similar chance to the low
and high growth scenario, the discount rate should be
dependent on the horizon of the project, declining from 4.4
percent for a 25-year horizon to less than 4 percent for a
100-year horizon. |
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