We analyze the profit efficiency of the Colombian banking industry during the period 2001 - 2013. Unlike previous studies, we estimate revenue and cost efficiency separately and then compute profit efficiency as a composite measure of both cost and revenue efficiency. This approach overcomes the...

In this study, we address a major problem in the measurement of firm performance and the regulation of natural monopolies, namely the intertemporal character of long-term investment decisions. In specific, we focus on the impact of adjustment costs of investments on estimates of firms’...

We develop a network technology model for pollution abatement that distinguishes between the two primary forms that abatement can take: Prevention of emissions from occurring in the first place, and treatment of any emissions that are generated by the production process. Our network model...