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Updated: Jul 16, 2025

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Measuring Delay Discounting in Humans Using an Adjusting Amount Task
Published on: January 9, 2016
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Measuring Time Preferences
Jonathan Cohen1, Keith Marzilli Ericson2,3, David Laibson3,4
1Princeton University.
Summary
This review translates financial choices into time preferences, revealing how "money earlier or later" (MEL) decisions reflect underlying discount functions and are influenced by factors beyond pure time preference.
Area of Science:
- Behavioral Economics
- Decision Science
- Psychology
Background:
- Understanding intertemporal tradeoffs is crucial for economic and psychological models.
- Existing research often uses varied methodologies to assess time preferences.
- A gap exists in directly translating financial decision metrics to utility-based discount functions.
Purpose of the Study:
- To review and synthesize research on measuring time preferences.
- To develop a framework for translating "money earlier or later" (MEL) decisions into discount functions.
- To identify empirical regularities and predictive power of MEL studies.
Main Methods:
- Literature review of studies measuring time preferences.
- Application of structural models to translate financial flows (required rates of return) into discount functions.
- Analysis of empirical regularities and predictive validity in MEL research.
Main Results:
- MEL experiments directly measure required rates of return for financial flows.
- These metrics can be translated into discount functions over utils using structural models.
- Empirical regularities and predictive power of MEL studies are summarized.
- Factors distinct from underlying time preferences influence MEL choices.
Conclusions:
- A unified approach can link financial decisions to underlying time preferences.
- MEL studies offer valuable insights into intertemporal decision-making.
- Recognizing external influences on MEL choices enhances the interpretation of time preference research.
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