Crossborder Tax Externalities are Budget Deficits Too Small

Working Paper: NBER ID: w10110

Authors: Willem H. Buiter; Anne C. Sibert

Abstract: In a dynamic optimising model with costly tax collection, a tax cut by one nation creates positive externalities for the rest of the world if initial public debt stocks are positive. By reducing tax collection costs, current tax cuts boost the resources available for current private consumption, lowering the global interest rate. This pecuniary externality benefits other countries because it reduces the tax collection costs for foreign governments of current and future debt service. In the non-cooperative equilibrium, nationalistic governments do not allow for the effect of lower domestic taxes on debt service costs abroad. Taxes are too high and government budget deficits too low compared to the global cooperative equilibrium. Even in the cooperative equilibrium complete tax smoothing is not optimal: current taxes will be lower than future taxes.

Keywords: No keywords provided

JEL Codes: E62; F42; H21


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
Tax Cut (H29)Lower Tax Collection Costs (H26)
Lower Tax Collection Costs (H26)Lower Global Interest Rate (E43)
Tax Cut (H29)Lower Global Interest Rate (E43)
Noncooperative Behavior (C72)Excessive Taxation (H26)
Lack of International Cooperation (F51)Suboptimal Fiscal Policies (E62)

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