Brussels, 12/12/2011 (Agence Europe) - European regional cohesion policy contributes to public assistance in various regions of the EU. Its effectiveness has to be demonstrated, however. For this purpose, then, the European Commission holds regular international conferences to assess how effective methods of evaluation of the cohesion policy are. The latest of such meetings bringing together those responsible for implementing and managing the evaluation took place in Warsaw on 11-12 December...