Abstract
The use of incentive regulation in telecommunications in the United States requires accurate measurement of the change in productivity. An approach to measuring productivity change, the Malmquist index approach, is introduced that not only provides a measure of that change but also allows for a decomposition into two mutually exclusive and exhaustive components – changes in technical efficiency over time and shifts in technology over time. Using annual data on four output measures and six input measures for the period 1988–1999 for nineteen local exchange carriers, the results indicate that productivity increased by about 5.5% per year. This growth is due primarily to innovation rather than improvements in efficiency. Of the nineteen LECs in the sample, eleven were operating efficiently throughout the entire 1988–1999 period. Of the remaining eight, four showed a slight improvement in efficiency while the efficiency of four declined. In the aggregate, however, there was virtually no change in efficiency. Finally, a comparison is made between two methods of estimating the change in productivity. The conventional growth accounting approach yields a lower estimate of the rate of change in productivity than does the Malmquist index approach.
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References
S. Afriat, Efficiency estimation of production functions, International Economic Review 13 (1972) 568–598.
H. Averch and L. Johnson, Behavior of the firm under regulatory constraint, American Economic Review 52 (1962) 1052–1069.
D. Baron, Design of regulatory mechanisms and institutions, in: Handbook of Industrial Organiza-tion, eds. R. Schmalensee and R. Willig (North-Holland, Amsterdam, 1989).
E. Berndt and M. Fuss, Productivity measurement with adjustments for variations in capacity utiliza-tion and other forms of temporary equilibrium, Journal of Econometrics 33 (1986) 7–29.
J. Bernstein and D. Sappington, Setting the X-factor in price-cap regulation plans, Journal of Regulatory Economics 16 (1999) 5–25.
W. Boyes, An empirical examination of the Averch–Johnson effect, Economic Inquiry 54 (1976) 211–230.
G. Brock, Telecommunications Policy for the Information Age (Harvard Univ. Press, Cambridge, 1994).
D. Caves, L. Christensen and W. Diewert, The economic theory of index numbers and the measurement of input, output, and productivity, Econometrica 50 (1982) 1393–1414.
T. Coelli, A Guide to DEAP Version 2.1: A Data Envelopment Analysis (Computer) Program, Department of Econometrics (University of New England, Armidale, NSW, Australia, 1996).
B. Craig, International productivity patterns: Accounting for input quality, infrastructure, and research, American Journal of Agricultural Economics 79 (1997) 1064–1076.
M. Crew and P. Kleindorfer, Incentive regulation in the United Kingdom and the United States: Some lessons, Journal of Regulatory Economics 9 (1996) 211–225.
R. Fare, S. Grosskopf and C. Lovell, Production Frontiers (Cambridge Univ. Press, Cambridge, 1994).
R. Fare, S. Grosskopf, B. Lundgren and P. Roos, Productivity changes in Swedish pharmacies 1980–1989: A nonparametric Malmquist approach, Journal of Productivity Analysis 3 (1992) 85–101.
R. Fare, S. Grosskopf, M. Norris and Z. Zhang, Productivity growth, technical progress, and efficiency change in industrialized countries, American Economic Review 84 (1994) 66–83.
M. Farrell, The Measurement of Productive Efficiency, Journal of the Royal Statistical Society 120 (1957) 253–281.
Federal Communications Commission, Statistics of Communications Common Carriers (U.S. Government Printing Office, Washington, DC, various years).
I. Fisher, The Making of Index Numbers (Houghton Mifflin, Boston, 1922).
R. Goldsmith, A Perpetual Inventory of National Wealth (National Bureau of Economic Research, New York, 1951).
S. Grosskopf, Efficiency and productivity, in: The Measurement of Productive Efficiency,eds. H. Fried, C. Lovell and S. Schmidt (Oxford Univ. Press, New York, 1993).
Industry Analysis Division, Trends in Telephone Service (Common Carrier Bureau, Federal Communications Commission, Washington, DC, December 2000).
D. Jorgenson and Z. Griliches, The explanation of productivity change, The Review of Economic Studies 34 (1967) 249–283.
F. Kiss, Productivity gains in Bell Canada, in: Economic Analysis of Telecommunications: Theory and Applications, eds. L. Courville, A. de Fontenay and R. Dobell (North-Holland, Amsterdam, 1983).
F. Kiss, Constant and variable productivity adjustments for price-cap regulation, in: Price Caps and Incentive Regulation in Telecommunications, ed. M. Einhorn (Kluwer Academic, Boston, 1991).
D. Kridel, D. Sappington and D. Weisman, The effects of incentive regulation in the telecommunications industry: A survey, Journal of Regulatory Economics 9 (1996) 269–306.
S. Malmquist, Index numbers and indifference curves, Trabajos de Estatistica 4 (1953) 209–242.
B. Mitchell and I. Vogelsang, Telecommunications Pricing: Theory and Practice (Cambridge Univ.Press, Cambridge, 1991).
H. Newton, Newton's Telecom Dictionary (Miller Freeman, New York, 1999).
H. Peterson, An empirical test of regulatory effects, Bell Journal of Economics 6 (1975) 89–103.
R. Shephard, Cost and Production Functions (Princeton Univ. Press, Princeton, NJ, 1953).
R. Sherman, Capital waste in the rate-of-return regulated firm, Journal of Regulatory Economics 4 (1992) 197–204.
R. Shin and J. Ying, Costly gains to breaking up: LECs and the baby bells, Review of Economics and Statistics 98 (1993) 357–361.
L. Taylor, Telecommunications Demand in Theory and Practice (Kluwer Academic, Dordrecht, 1994).
Telecommunications Industry Association, 2000 Multimedia Telecommunications Market Review and Forecast (MMMTA Market Research, Arlington, VA, 2000).
J. Tirole, The Theory of Industrial Organization (MIT Press, Cambridge, MA, 1998).
J. Triplett, High-tech industry productivity and hedonic prices, in: Industry Productivity (Organization for Economic Cooperation and Development, Paris, 1996).
N. Uri, Price caps and the error in the X-factor calculation, Information Economics and Policy 12 (2000) 329–339.
N. Uri and F. Setzer, Regulating local exchange carriers, Pricing Policy Division, Federal Communications Commission, Washington, DC (2002).
U.S. House of Representatives, Committee on Energy and Commerce, Subcommittee on Telecom-munications and Finance, FCC Telephone Price Cap Proposal (U.S. Government Printing Office, Washington, 1988).
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Uri, N.D. The Measurement of the Change in Productivity in Telecommunications. Telecommunication Systems 20, 177–194 (2002). https://doi.org/10.1023/A:1016583810796
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DOI: https://doi.org/10.1023/A:1016583810796