Germany's water supply industry is characterized by a multitude of utilities and widely diverging prices, possibly resulting from structural differences beyond the control of firms' management, but also from inefficiencies. In this article we use Data Envelopment Analysis and Stochastic Frontier...

Kaldor's Laws, regarding relationships between output, employment and productivity in manufacturing are estimated with Kreis-data of the Bundesländer Hessen, Nordrhein- Westfalen, Rheinland-Pfalz and Saarland between 1980-92 by estimation methods considering the presence of spatial...