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Updated: Jul 12, 2026

Measuring Delay Discounting in Humans Using an Adjusting Amount Task
Published on: January 9, 2016
Can we use human judgments to determine the discount rate?
1Department of Psychology, University of Pennsylvania, Philadelphia 19104-6196, USA. baron@psych.upenn.edu
Abstract:
It has been suggested that the long-term discount rate for environmental goods should decrease at longer delays. One justification for this suggestion is that human judgments support it. This article presents an experiment showing that judgments concerning discount rates are internally inconsistent. These results point to potential problems with the use of judgments referenda for determining discount rates in cost-benefit analyses.
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