There is still little consensus on the effectiveness of business support policies. The empirical evaluation is complicated by the difficulty in achieving reliable identification. We analyse the impact of Law 488/92, the main Italian regional policy. We propose a new approach, named multiple...

German structural policy is characterized by a composite indicator with three targets:(1) minimization of unemployment, (2) maximization of GDP, and (3) equalization of regional unemployment rates. The composite indicator with given target weights is maximized subject to budget constraints and...