In this paper, we provide evidence that the rate of return to schooling varies across individuals and this variation is responsible for much of the variation in the length of schooling.

This study evaluates the technical efficiency and productivity of a sample of public sector hospitals in three provinces of South Africa using the non-parametric techniques of data envelopment analysis (DEA) and DEA-based Malmquist Productivity Index (MPI).

The entropy principle yields, for a given set moments, a density that involves the smallest amount of prior information. We first show how entropy densities may be constructed in a numerically efficient way as the minimization of a potential. Next, for the case where the first four moments are...

In this paper we examine educational data whch has a cross-classified structure. A cross-classified value-added multilevel model is proposed for these data and the problem of estimation are discussed in relation to the probllem of an endogenous regressor.

It is well known that the usual techniques for estimating random and fixed effects panel data models are inconsistent in the dynamic setting. As a consequence, numerous consistent estimators have been proposed in the literature. However, all such estimators rely on certain well defined...