Market power, productivity and the EU Single Market Program: Evidence from a panel of Italian firms

This paper provides empirical evidence on the impact the EU Single Market Program has exerted on market power and total factor productivity in a large sample of Italian firms. Both market power and total factor productivity are estimated by applying several extensions of the methodology developed by Hall. Main findings can be summarised as follows. Firstly, for the sample of '1992 most sensitive' firms market power decreases by 50% in the SMP implementation period compared to previous years, whereas no clear pattern emerges for the other sub-samples of firms. Secondly, and less conclusively, only for the sub-sample of '1992 most sensitive' firms a positive transitory shock to productivity growth rates is observed immediately after the announcement of the reform project. Overall, these results are consistent with the long standing view that economic integration reduces firms' market power and increases productivity via the removal of non-tariff barriers. (C) 2001 Elsevier Science B.V. All rights reserved. JEL classification: L1; O3; F1.