Contemporaneous models of labor economics have brought the basic microeconomic elements to observe a segmented labor market. The objective of minimising the cost of efficient labor unit is at the root of both the efficiency wage and "insiders-outsiders" models. In this paper we are interested in...

In the mid 1980's, African electric companies embarked on reform programmes, intending to improve their productive efficiency. Twelve of these networks are studied in this paper. At fïrst, parametric production frontier models are estimated on panel data. The Ivorian company, the management of...