This paper investigates the convergence pattern of technical efficiency of the South Africa Power Pool (SAPP) utilities over the period April 2003–March 2010 by means of parametric and non-parametric techniques. Technical efficiency scores are computed via both stochastic frontier analysis and...

The paper attempts to test the Environment Kuznets Curve (EKC) hypothesis for 36 high-income countries for the period 1980-2005. The test is based on the suggestion of Narayan and Narayan (2010). Various panel data unit root and co-integration tests are applied. Carbon dioxide (CO2) emissions...