This paper addresses the post-entry performance of firms for seven regions in Portugal, at the NUT II level, by investigating the structural characteristics of survival, using a semi-parametric method, during the period 1985 to 2007. In order to approach the prevalence of some stylized facts and determinants of new firm survival, a new entrepreneurship database was produced following the application of the Eurostat/OECD methodology to Quadros de Pessoal. In the semi-parametric estimation survival is related with seven explanatory variables and sector and year dummies. The main contribution of this work is the application of an internationally comparable methodology to a linked employer-employee dataset, which provides a regional overview of firm and survival dynamics over an extended period of time, while guaranteeing regional, national and international comparability.
Keywords: survival analysis, firm dynamics, regional analysis