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The paper analyses the effect of corporate taxes on new investment in different types of capital assets in the manufacturing industries of 11 advanced economies over the period 1991-2007. The magnitude of the asset substitution elasticities points to a significant inter-asset distortionary effect induced by differences in the tax-adjusted user cost of capital. Overall, differential taxation leads on average to under-investment in ICT capital and to over-investment in other machinery and equipment compared to a counterfactual benchmark where marginal tax rates are equalized across assets. Once cross-country heterogeneity in corporate taxation is accounted for, the results are more mixed, in terms of both the size and the direction of the distortions. On average, 4 percent of the aggregate capital stock appears misallocated.
