We undertake a study where we examine changes in the profitability, productivity and price recovery of firms in the U.S. telecommunications industry over a sixteen-year period. We assess the performance of thirty-three major companies in the local-exchange sector over six time periods 1975,...

Demerjian, Lev, and McVay (2012) (DLM) provide a conceptual framework for the measurement of managerial ability using data envelopment analysis (DEA). We show that the DLM method provides a consistent estimator of managerial ability. The DLM approach to measuring managerial ability begins with...