Bartels, Robert; Islam, Towhidul - In: Journal of Productivity Analysis 18 (2002) 2, pp. 161-169
for 28 countries. In addition to economic variables, we consider the role of technical efficiency in causing supply … constraints. Stochastic frontiers are used to determine the technical efficiency with which countries use labor and capital inputs … to connect customers. When technical efficiency is included in duration models for waiting times until connection, we …