Cost-Benefit Analysis of Infrastructure Projects in an Enlarged European Union : An Incentive-Oriented Approach

The purpose of the paper is to analyse some results of cost-benefit analysis in a sample of ISPA (Structural Instrument for pre-accession countries) projects. The focus is particularly on the variability of financial and economic rates of return and how to integrate this information in the EU co-financing mechanism. We investigate, through the analysis of variance of co-financing rate, to which extent variability of rates is due to structural characteristics (sectors, countries) or to the existence of a residual variance due both to specificity of the project and discretional element of the appraisal method, which may constitute an information noise. We find that the variance of co-financing rate across countries is poorly explained by different composition of sectors of investment. This suggests the need to reinforce a more consistent approach to evaluation and co-financing. We suggest some possible solutions