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Universität Siegen

Fakultät Wirtschaftswissenschaften, Wirtschaftsinformatik und Wirtschaftsrecht

Volkswirtschaftliche Diskussionsbeiträge


Thomas Eichner und Rüdiger Pethig

Self-enforcing capital tax coordination

Capital tax competition is known to result in inefficiently low tax rates and an undersupply of public goods. The provision of public goods and with it the wel- fare of all countries can be enhanced via tax coordination. Based on the standard Zodrow-Mieszkowski-Wilson tax-competition model this paper analyses the con- ditions under which tax coordination by a group of countries is self-enforcing. It is shown that there always exists a rather small stable tax coalition. For some subset of the parameter space the grand coalition may be stable as well, even if the total number of countries is large. The small stable coalition is not very effec- tive in mitigating the inefficiency of the non-cooperative Nash equilibrium. The ineffectiveness is increasing in the total number of countries.

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