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INFRASTRUCTURE AND INEQUALITY: INSIGHTS FROM INCORPORATING KEY ECONOMIC FACTS ABOUT HOUSEHOLD HETEROGENEITY

Published online by Cambridge University Press:  01 August 2016

David Klenert*
Affiliation:
Mercator Research Institute on Global Commons and Climate Change, Technical University of Berlin, and Potsdam Institute for Climate Impact Research
Linus Mattauch
Affiliation:
Mercator Research Institute on Global Commons and Climate Change
Ottmar Edenhofer
Affiliation:
Mercator Research Institute on Global Commons and Climate Change, Potsdam Institute for Climate Impact Research, and Technical University of Berlin
Kai Lessmann
Affiliation:
Potsdam Institute for Climate Impact Research and Mercator Research Institute on Global Commons and Climate Change
*
Address correspondence to: David Klenert, Mercator Research Institute on Global Commons and Climate Change (MCC), Torgauer Str. 12-15, 10829 Berlin, Germany; e-mail: klenert@pik-potsdam.de.

Abstract

We study the impacts of investment in public capital on equity and efficiency. Taking into account stylized facts on wealth accumulation, we model agent heterogeneity through differences in saving behavior, income source and time preference. We find that in the long run, public investment is Pareto-improving and that it reduces inequality in wealth, welfare, and income at the same time, if it is financed by a capital tax. Consumption tax financing is also Pareto-improving but distribution-neutral. Only for labor tax financing, a trade-off between equity and efficiency occurs. Additionally, we find that agents differ in their preferred tax rates.The results for capital and labor tax financing are valid for both, the case of decreasing and constant returns to accumulable factors.

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Copyright
Copyright © Cambridge University Press 2016 

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