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2 documents.
1.
The quality of telephone service in the United States : the role of regulation
/ Consulting Communications Engineers, Inc..
Brookline, Mass. : Information Gatekeepers, 1979.
2.
Telephone company performance under alternative forms of regulation in the U.S.
/ Tardiff, Timothy J; Taylor, William E; National Economic Research Associates (NERA).
Cambridge, MA : National Economic Research Associates, 1993.
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