This paper extends the recent work by Frei and Harker on projections onto efficient frontiers (1999) in three ways. First, we provide a formal definition of the production set as the intersection of a finite number of closed halfspaces. We emphasize the necessity of a complete enumeration of the...

The aim of this report is to identify the possible effect of covering the highway A1 at Saint-Denis (near Paris) on housing prices. This covering induces a notable reduction of the noise nuisance and an improvement of the urban environment. In order to measure the effects from covering, we have...

Various methodological improvements in production function modelling allow the integration of undesirable outputs, the distinction between stakeholders? objective-function and the sectoral aggregation of individual technologies. This paper gathers these concepts in order to assess the...