In this paper we introduce DEA models that can be used to compute the way firms' profitability changes when the assignment of property rights changes.

In addition to providing direct patient care, some hospitals also are used as training grounds for medical students and physicians-in-training (medical residents). Because of these additional responsibilities, total costs are higher in teaching hospitals than their non-teaching counterparts. In...

No abstract.

In response to a question raised by Knox Lovell, we develop a method for estimating directional output distance functions with endogenously determined direction vectors based on exogenous normalization constraints. This is reminiscent of the Russell measure proposed by Färe and Lovell (J Econ...

We analyse a sample of airline firms most recently examined by Alam and Sickles (2000) and extended by Good, Sickles and Weiher (2005) to include an index of circuity as one of our measures of service quality of airline travel. An additional measure of quality of airline travel is timeliness and...

The Malmquist productivity index has many attractive features. One is that it decomposes into a technical efficiency change index and a technical change index. Under constant returns to scale, its technical efficiency change index has been decomposed into a "pure" technical efficiency change...