Majumdar, Sumit K.; Chang, Hsi-Hui - In: Review of Industrial Organization 13 (1998) 6, pp. 637-649
Optimal firm size and patterns of returns to scale among the local exchange companies in the U.S. telecommunications industry are estimated for the years: 1975, 1978, 1981, 1984, 1987 and 1990. The independent companies display increasing returns to scale, while the Baby Bells display constant...
