Conventional data envelopment analysis (DEA) for measuring the relative efficiency of a set of decision-making units … technical efficiencies, but such methods are unable to calculate the interval scale efficiency. The focus of this paper is the … efficiency. The associated models are essentially nonlinear programs with only bound constraints for variables in a sophisticated …

This article examines the efficiency of wind energy production. We quantify production losses in four wind parks across … Germany for 19 wind turbines with non-convex efficiency analysis. In a second stage regression, we adapt the linear regression …

emissions from burning biomass. We apply the network DEA model to measure the revenue efficiency of forest production of Swedish … persistent economic inefficiencies of forest production in some counties, reducing the overall efficiency of Sweden's forest and …

efficiency-enhancing mechanisms that a hospital puts in place. Finally, the research looks into some of the factors that affects … efficiency …

to specifically assess the impact of the CO2 tax scheme of Sweden on firms' profit efficiency. The empirical methodology …

16 departments. The study illustrates how the recent developments in efficiency analysis and statistical inference can be …

pervasive existence of ill-conditioned matrices leading to obviously wrong estimates of efficiency scores, and units declared as …

Measuring productive efficiency is an important research strand within fields of economics, management science and … operations research. One definition of efficiency is the proportional scaling needed for observations of an inefficient unit to … weighted inputs. When linear programming is used to estimate efficiency the two definitions give identical results due to the …

measures of efficiency provide also indicators of convexity. Illustrations through simulated and real data (mutual funds …