Rejoinder---Natural Monopoly and the Bell System: Response to Charnes, Cooper and Sueyoshi
David Evans () and
Management Science, 1988, vol. 34, issue 1, 27-38
Our study of the Bell System cost function shows that it is possible to reject the hypothesis that AT&T was a natural monopoly. Our study is based on a regression analysis of a translog cost function estimated on 1947--1977 data. Charnes, Cooper, and Sueyoshi (Charnes, A., W. W. Cooper, T. Sueyoshi. 1988. A goal programming/constrained regression review of the bell system breakup. Management Sci. 34 1--26.) claim that they reverse our conclusion when they use goal programming estimators of a translog cost function estimated on exactly the same data that we use. This claim is false. There is no basis for comparing our estimates with their estimates because they, in fact, use different data than we use and estimate a different cost function than we estimate. Moreover, when goal programming estimates and regression estimates based on the same data and similar cost function specifications are compared, they yield similar estimates and produce the same inference about natural monopoly.
References: Add references at CitEc
Citations: View citations in EconPapers (8) Track citations by RSS feed
Downloads: (external link)
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: https://EconPapers.repec.org/RePEc:inm:ormnsc:v:34:y:1988:i:1:p:27-38
Access Statistics for this article
More articles in Management Science from INFORMS Contact information at EDIRC.
Bibliographic data for series maintained by Matthew Walls ().