Repositorio Institucional de la Universidad de Oviedo

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358

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We are grateful to participants in the ACEDE Conference at Seville (2007), an anonymous referee and the editor for their helpful comments and suggestions. Financial support from the Regional Government of Asturias, Project IB05-183, and from the Ministry of Science and Technology of Spain (MCT) - ERDF, Project MEC-06-SEJ 2006-15040-C02-01 is gratefully acknowledged. This project was also made possible by a grant from the ERDF (FEDER-05-UNOV05-23-017) for acquisition of Worldscope. A previous version of this paper has been published as the working paper nº 372/2008 of working paper series of the Fundación de las Cajas de Ahorros (FUNCAS).