This paper proposes an aggregated ratio analysis model which can be utilized to evaluate relative efficiency of … insight into the frontier analysis. Whether a DMU is on the frontier or efficient frontier can be informed by using our …

estimates. A very simple example is given to illustrate the statistical issues underlying nonparametric efficiency measurement …

The objective of this paper is to analyze the efficiency of the water sector in Latin American countries. We try to … find factors affecting efficiency rather than identifying which country or individual provider is more or less efficient … efficiency in Latin American countries. We estimate econometric efficiency frontiers using data from a regional survey conducted …

farm efficiency and productivity. … assessment of Russian agriculturalreform using the two evaluation approaches shows that only modest progress has been made.Russia …