"This paper explores the economic consequences of proposed EU reforms for a common consolidated corporate tax base. The reforms replace separate accounting with formula apportionment as a way to allocate corporate tax bases across countries. To assess the economic implications, we use a numerical computable general equilibrium (CGE) model for Europe. It encompasses several decision margins of firms such as marginal investment, FDI decisions, and multinational profit shifting. The simulations suggest that consolidation does not yield substantial welfare gains for Europe. The variation of effects across countries is large and depends on the choice of the apportionment formula. Consolidation with formula apportionment does not weaken incentives for tax competition. Tax competition instead offers a rationale for rate harmonization, in addition to base harmonization." Copyright (c) CEPR, CES, MSH, 2010.

No abstract

Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in AbstractThe European Commission favours the introduction of a consolidated corporate tax base to overcome the distortions arising from the existing system of separate accounting. The blueprints for consolidation are simulated with the applied general equilibrium model CORTAX. We show that the benefits of a common consolidated tax base are limited due to two weaknesses. Formula apportionment, which is needed to allocate the consolidated taxable profits across jurisdictions, creates for MNEs new tax planning possibilities to exploit tax rate differentials in the European Union. In addition, it triggers tax competition as the incentives for member states to attract foreign investment by reducing their tax rates are enforced. The second weakness arises from the unlevel playing field, which is introduced if only part of the firms chooses to participate in the consolidation. The gains from consolidation can be fully grasped if it is obliged for all firms and accompanied by harmonisation of the tax rate.

Standard-Nutzungsbedingungen:Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Zwecken und zum Privatgebrauch gespeichert und kopiert werden.Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich machen, vertreiben oder anderweitig nutzen.Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, gelten abweichend von diesen Nutzungsbedingungen die in der dort genannten Lizenz gewährten Nutzungsrechte. Terms of use: Documents in AbstractThis paper analyzes the impact of corporate taxes on structural unemployment, using an applied general equilibrium model for the European Union. We find that the unemployment and welfare effects of corporate taxes differ considerably among European countries. The magnitude of these effects rise in particular in the broadness of the corporate tax base of a country, and the strength of international spillover effects through foreign direct investment. The effect on unemployment is smaller if the substitution elasticity between labour and capital is large, if international spillover effects operate primarily via multinational profit shifting, and if equilibrium forces on the labour market are strong. Although the effect of corporate taxes on unemployment may be smaller than the effect of labour and value-added taxes (e.g. under relatively strong real wage resistance), the welfare costs of corporate taxation are typically larger for most European countries under plausible parameters, especially under strong international spillovers.JEL codes: D58; H25; J64.