In this paper, I investigate the sustainability of optimal cooperative policies for the replenishment of a renewable resource shared by two countries. If the development of these nations constitutes a threat to the common stock, under what conditions can a social best (a Pareto optimum) be sustainable? The question is addressed within a two-country neo-classical growth model with externality. In the worst scenario, the poorer country leaves the replenishment burden to the rich. International transfers are then non-existent. Nevertheless, in absence of a commitment mechanism, it is still possible to reach a social best provided the countries' patience, expressed by their discount factor, is high enough. The strategies that implement these Pareto optima are self-enforcing trigger-strategies that involve positive transfers of wealth between countries and a threat to autarky in case of defection. Sustainable Pareto optima are then identified in a specific case of environmental resource (clean air) and for a calibration of the model economies to the United States and a country five times poorer. An estimate of the transfers required to implement these social optima is provided.
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Find related papers by JEL classification: D51 - Microeconomics - - General Equilibrium and Disequilibrium - - - Exchange and Production Economies E13 - Macroeconomics and Monetary Economics - - General Aggregative Models - - - Neoclassical Q2 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Chari, V V & Kehoe, Patrick J, 1990.
"Sustainable Plans,"
Journal of Political Economy,
University of Chicago Press, vol. 98(4), pages 783-802, August.
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V.V. Chari & Patrick J. Kehoe, 1989.
"Sustainable plans,"
Staff Report
122, Federal Reserve Bank of Minneapolis.
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