Analysis of information sources in references of the Wikipedia article "시간선호" in Korean language version.
In 1937, Paul Samuelson introduced the DU model in a five page article titled “A Note on Measurement of Utility.” Samuelson’s paper was intended to offer a generalized model of intertemporal choice that was applicable to multiple time periods (Fisher’s graphical indifferencecurve analysis was difficult to extend to more than two time periods) and to make the point that representing intertemporal tradeoffs required a cardinal measure of utility. But in Samuelson’s simplified model, all the psychological concerns discussed over the previous century were compressed into a single parameter, the discount rate.
