An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Model of exponential discounting and hyperbolic discounting.
Note. The area under the solid line represents net present value of perceived harm under hyperbolic discounting with a short-term discount factor of 0.6.