panel are employed to obtain measures of efficiency for those journals belonging simultaneously to the areas of “economics …” and “social science, mathematical methods” in the Web of Science database. This efficiency is measured in terms of the …

background of two concepts of performance evaluation – the terms efficiency and productivity, and empirically, the performance …

returns (CAR), this study computes industry-adjusted eco-efficiency scores at the firm level, using carbon emission data from … the Carbon Disclosure Project for a worldwide sample during 2006–2010. The results show that eco-efficiency is positively … efforts by firms to reduce their carbon emissions and enhance their eco-efficiency. This result supports the intuition that …

This paper analyzes the effects of mergers around the world over the past 15 years. We utilize a large panel of data on … efficiency and market power. Our results suggest that those mergers that decrease profits and efficiency account for a large … efficiency. The first conclusion seems to be a more likely explanation for large companies, whereas the latter is likely to be …

This paper proposes an alternative specification for technical efficiency effects in a stochastic production frontier … existing inefficiency effects models. The efficiency effects are represented by the standard normal cumulative distribution … function of exogenous variables which ensures the efficiency scores to lie in a unit interval. An empirical exercise based on …

with the efficiency effects. Following Paul and Shankar (2018), the efficiency effects are specified by a standard normal … cumulative distribution function of exogenous variables which ensures the efficiency scores to lie in a unit interval. This … using non-linear least squares dummy variables (NLLSDV) estimator. The efficiency scores are directly calculated once the …

-equation model building on the factorially determined multi-output model of classical production theory can theoretically satisfy the … maximisation is derived. Serious problems with the single-equation models that have dominated the literature studying efficiency of … the materials balance and efficiency requirements on production relations. Multi-equation models without this functional …