Abstract
In this article, we examine how centralization and decentralization internalize positive spillovers of local public expenditures when a spill-in from foreign spending is not a substitute, but a complement to domestic spending. Specifically, we assume the production of two district-specific public goods out of two complementary district-specific inputs in a taste-symmetric two-district setting. We compare equilibria in non-cooperative decentralization and cooperative centralization for different spillovers, degrees of complementarity and cost-division rules, and control for the effects of strategic delegation and the feasibility of cross subsidies to the input in the foreign district. We find that centralization welfare-dominates decentralization in most institutional settings and for a wide range of parameters. Yet, we also identify conditions for decentralization to welfare-dominate centralization even in our setup where preferences are homogenous. The setup features three structural novelties: Strategic delegation improves provision and welfare in decentralization. In the absence of cross-district transfers, decentralized provision and welfare increase in spillovers. Welfare in centralization is generally non-monotonic in spillovers.
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Gregor, M., Stastna, L. The decentralization tradeoff for complementary spillovers. Rev Econ Design 16, 41–69 (2012). https://doi.org/10.1007/s10058-012-0113-y
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DOI: https://doi.org/10.1007/s10058-012-0113-y