A Path Through the Wilderness: Time Discounting in Growth Models
AbstractAlthough economists have recognized long ago that “time enters into all economic questions”, the ways they treated and modeled time has varied substantially in the last century. While in the 1930s there was a distinctive Cambridge tradition against discounting utilities of future generations, to which Frank Ramsey subscribed, postwar neoclassical growth economists (of the “Ramsey-Cass-Koopmans model”) applied the discount factor either to individual’s or to social planner’s decision-making as a technical requirement of dynamic general equilibrium models. My goal in this article is to shed some historical light on how a practice that was condemned as ethically indefensible when applied to intergenerational comparisons became a technical requirement in dynamic models of either a consumer or a planner deciding the intertemporal allocation of resources.
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Date of creation: 12 Nov 2013
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- B22 - Schools of Economic Thought and Methodology - - History of Economic Thought since 1925 - - - Macroeconomics
- B23 - Schools of Economic Thought and Methodology - - History of Economic Thought since 1925 - - - Econometrics; Quantitative and Mathematical Studies
- E32 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Business Fluctuations; Cycles
This paper has been announced in the following NEP Reports:
- NEP-ALL-2013-11-22 (All new papers)
- NEP-DGE-2013-11-22 (Dynamic General Equilibrium)
- NEP-HIS-2013-11-22 (Business, Economic & Financial History)
- NEP-HME-2013-11-22 (Heterodox Microeconomics)
- NEP-HPE-2013-11-22 (History & Philosophy of Economics)
- NEP-MAC-2013-11-22 (Macroeconomics)
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