technology". By separating the production of undesirable outputs from that of desirable outputs, not only do we ensure that … index also provides a meaningful way to decompose environmental productivity into environmental technological and efficiency …

refuses access to the data), I show its assumption of homogeneous technology cannot be maintained. Quantile regressions (QR … efficiency scores derived from stochastic frontier analysis. To correct for this heterogeneity in coefficients, I propose a …. This estimation has better goodness of fit, reduced variance of all coefficients, and higher efficiency scores for nearly …

Existing methods for the measurement of technical efficiency in the dynamic production models obtain it from the … dynamic evolution of efficiency that is explicitly optimized by the firm. This paper introduces a new conceptualization of … efficiency that directly enters the firm's intertemporal production decisions and is both explicitly costly and endogenously …

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 …

which we then apply. Thirdly, we introduce the concept of the spatial efficiency multiplier and show that the efficiency … benchmark for a productive unit from the structural form of a spatial stochastic frontier model differs from the efficiency …

-sample performance of our estimators. An empirical study of efficiency trends in the largest banks operating in the U.S. from 1990 to …