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Quantifying Optimal Growth Policy

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Journal of Public Economic Theory

Published online on

Abstract

We determine the optimal growth policy within a comprehensive endogenous growth model. The model accounts for important elements of the tax transfer system and for transitional dynamics. It captures the three main growth engines based on standard ingredients in order to understand the quantitative policy and welfare implications of the existing theory. Our calibrated model indicates that the current policy leads to severe underinvestment in both R&D and physical capital, implying that both R&D and capital investment subsidies should be increased substantially. We argue that previous research has overlooked a strong evidence for the welfare significance of the quest for the optimal growth policy by failing to calibrate the distortionary tax system.