Consumption externalities with endogenous time preference |
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Authors: | Yasuhiro Nakamoto |
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Affiliation: | (1) Graduate School of Economics, Osaka University, 1–7, Machikaneyama, Toyonaka, Osaka 560–0043, Japan |
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Abstract: | This paper shows that in a model with inelastic labor supply, consumption externalities have impacts on stationary consumption and capital. The key element in observing the effects of consumption externalities on stationary consumption and capital is the endogeneity of the time preference rate, which depends on future-oriented resources rather than on private consumption. We conclude that when individuals experience jealousy, they become more impatient, leading to a lower level of capital stock and a higher level of consumption relative to those of the social optimum, while when they experience admiration, these relationships are reversed. We examine an optimal tax policy that replicates the socially optimal path in the centrally planned economy. Finally, using numerical analysis we explore how this economy evolves through time. |
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Keywords: | Decreasing marginal impatience Consumption externalities Optimal tax policy Transitional dynamics |
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