What lessons to draw from multiple regional case studies: between comparability and specificity

Abstract This paper, presented at the Sixth European Conference on Evaluation of Cohesion Policy (Warsaw, 30 November-1 December 2009), addresses the specific case of regional case studies, i.e., case studies concerned with the effects of a SF programme implemented in a region. In the following, we draw on the concrete experience of the ex post evaluation of ERDF in 2000-06 (in particular Work package 4 Structural Change and Globalisation hereafter WP4) and other evaluations to review a set of principles that could help solve the dilemma between promoting specificity and making possible comparison and generalisation intrinsic to multiple case studies. The paper distinguishes three stages at which specific steps can be taken to ensure the final comparability and generalisation of findings: selection phase, implementation of the cases on the ground, and synthesis and generalisation. The intention is here to be deliberately concrete and useful, providing pragmatic solutions.