Parental altruism, life expectancy and dynamically inefficient equilibria
AbstractThis paper presents a continuous time overlapping-generation (OLG) model which generalizes the Blanchard-Buiter-Weil model and clarifies the relationships between dynastic altruism, the length of planning horizons, and dynamic inefficiency. Our main innovation relies on the introduction of parental altruism, whose intensity is variable. We first show that parental altruism and life expectancy do favor overaccumulation. Second, we give a condition that explains why the Ramsey model may only display dynamic efficiency. These theoretical results are illustrated by a parameterization from US data. Our numerical exercises suggest that the US economy is dynamically efficient, mainly because of the shortness of life expectancy.
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Bibliographic InfoArticle provided by Elsevier in its journal Journal of Economic Dynamics and Control.
Volume (Year): 33 (2009)
Issue (Month): 11 (November)
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Web page: http://www.elsevier.com/locate/jedc
Overlapping-generations models Productive capital Dynamic (in)efficiency Intergenerational altruism;
Other versions of this item:
- D'ALBIS Hippolyte & DECREUSE Bruno, 2007. "Parental altruism, life expectancy and dynamically inefficient equilibria," LERNA Working Papers 07.10.231, LERNA, University of Toulouse.
- d'Albis, Hippolyte & Decreuse, Bruno, 2007. "Parental altruism, life expectancy and dynamically inefficient equilibria," MPRA Paper 3629, University Library of Munich, Germany.
- Hippolyte D'Albis & Bruno Decreuse, 2009. "Parental Altruism, Life Expectancy and Dynamically Inefficient Equilibria," Post-Print halshs-00353112, HAL.
- D61 - Microeconomics - - Welfare Economics - - - Allocative Efficiency; Cost-Benefit Analysis
- D90 - Microeconomics - - Intertemporal Choice and Growth - - - General
- E21 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Consumption; Saving; Wealth
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