The stochastic frontier analysis (Aigner et al., 1977, Meeusen and van de Broeck, 1977) is widely used to estimate individual efficiency scores. The basic idea lies in the introduction of an additive error term consisting of a noise and an inefficiency term. Most often the assumption of a...

Information on the capital stock employed in a firm is missing in data sets from official statistics in Germany. This paper presents a method to estimate the capital stock of manufacturing enterprises that are covered by the cost structure survey from German official statistics. It uses data...