Discount function

From Wikipedia, the free encyclopedia

A discount function is used in economic models to describe the weights placed on rewards received at different points in time. For example, if time is discrete and utility is time-separable, with the discount function

f(t)

total utility is given by

U(\{c_t\}_{t=0}^\infty)=\sum_{t=0}^\infty {f(t)*u(c_t)}.

Exponential discounting and hyperbolic discounting are the two most commonly used examples.

[edit] Reference

For a comprehensive review, see: Shane Frederick & George Loewenstein & Ted O'Donoghue, 2002. "Time Discounting and Time Preference: A Critical Review," Journal of Economic Literature, vol. 40(2), pages 351-401, June.

Retrieved from "http://en.wikipedia.org../../../d/i/s/Discount_function.html"