Saving Rate Dynamics in the Neoclassical Growth Model – Hyperbolic Discounting and Observational Equivalence
AbstractThe standard neoclassical growth model with Cobb-Douglas production predicts a monotonically declining saving rate, when reasonably calibrated. Ample empirical evidence, however, shows that the transition path of a country’s saving rate exhibits a rising or non- monotonic pattern. In important cases, hyperbolic discounting, which is empirically strongly supported, implies transitional dynamics of the saving rate that accords well with empirical evidence. This holds true even in a growth model with Cobb-Douglas production technology. We also identify those cases in which hyperbolic discounting is observationally equivalent to exponential discounting. In those cases, hyperbolic discounting does not affect the saving rate dynamics. Numerical simulations employing a generalized class of hyperbolic discounting functions that we term regular discounting functions support the results.
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Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 45518.
Date of creation: 25 Mar 2013
Date of revision:
Saving rate; non-monotonic transition path; hyperbolic discounting; regular discounting; commitment; short planning horizon; neoclassical growth model;
Other versions of this item:
- Y. Hossein Farzin & Ronald Wendner, 2013. "Saving Rate Dynamics in the Neoclassical Growth Model – Hyperbolic Discounting and Observational Equivalence," Working Papers 2013.42, Fondazione Eni Enrico Mattei.
- Y. Hossein Farzin & Ronald Wendner, 2013. "Saving Rate Dynamics in the Neoclassical Growth Model — Hyperbolic Discounting and Observational Equivalence," Graz Economics Papers 2013-05, University of Graz, Department of Economics.
- D91 - Microeconomics - - Intertemporal Choice - - - Intertemporal Household Choice; Life Cycle Models and Saving
- E21 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
- O40 - Economic Development, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - General
This paper has been announced in the following NEP Reports:
- NEP-ALL-2013-03-30 (All new papers)
- NEP-DGE-2013-03-30 (Dynamic General Equilibrium)
- NEP-FDG-2013-03-30 (Financial Development & Growth)
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