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The Structure of Production, Technological Change, and the Rate of Growth of Total Factor Productivity in the Bell System

Listed author(s):
  • M. Ishaq Nadiri
  • Mark Schankerman
Registered author(s):

    The objectives of this preliminary study are threefold. The first is to analyze empirically the production structure of the Bell System at the aggregate level. Particular attention is focused on the pattern of substitution among the factor inputs and the degree to which the aggregate production function is characterized by economies of scale. In this connection, we explore the role of research and development in the Bell System as an input in the production process, and its interaction with the traditional inputs. Second, we examine the impact of external technological chance on the production structure of the Bell System. The issues here include not only the rate of such technical change, but also the extent to which it alters the optimal level and mix of inputs, that is, the factor bias of external technical change. The third objective is to explore the inter relationship between scale economies internal to the Bell System and external technical change in determining the rate of growth of total factor productivity (TFP) . Specifically, we propose and illustrate a methodology for composing the observed growth of TFP into a part related to scale economies and a part included by technical change. We address these issues by first estimate in a an aggregate translog cost function for the Bell System, using annual data for the period 1947-1976. The implied estimate of the scale economies is then used to explore the sources of the growth of TFP.

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    File URL: http://www.nber.org/papers/w0358.pdf
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    Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 0358.

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    Date of creation: Jun 1979
    Publication status: published as Nadiri, M. Ishaq and Mark Schankerman. "The Structure of Production, Technological Change, and the Rate of Growth of Total Factor Productivity in the Bell System," Productivity Measurement in Regulated Industries, ed. Thomas G. Cowing and Rodney E. Stevenson, New York: Academic Press, 1981.
    Handle: RePEc:nbr:nberwo:0358
    Note: PR
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    1. Christensen, Laurits R & Jorgenson, Dale W & Lau, Lawrence J, 1973. "Transcendental Logarithmic Production Frontiers," The Review of Economics and Statistics, MIT Press, vol. 55(1), pages 28-45, February.
    2. Ephraim F. Sudit, 1973. "Additive Nonhomogeneous Production Functions in Telecommunications," Bell Journal of Economics, The RAND Corporation, vol. 4(2), pages 499-514, Autumn.
    3. B.E. Davis & G.J. Caccappolo & M.A. Chaudry, 1973. "An Econometric Planning Model for American Telephone and Telegraph Company," Bell Journal of Economics, The RAND Corporation, vol. 4(1), pages 29-56, Spring.
    4. Hulten, Charles R, 1973. "Divisia Index Numbers," Econometrica, Econometric Society, vol. 41(6), pages 1017-1025, November.
    5. Gregory Chow & Ray C. Fair, 1973. "Maximum Likelihood Estimation of Linear Equation Systems with Auto-Regressive Residuals," NBER Chapters,in: Annals of Economic and Social Measurement, Volume 2, number 1, pages 17-28 National Bureau of Economic Research, Inc.
    6. Diewert, W. E., 1976. "Exact and superlative index numbers," Journal of Econometrics, Elsevier, vol. 4(2), pages 115-145, May.
    7. Hanoch, Giora, 1975. "The Elasticity of Scale and the Shape of Average Costs," American Economic Review, American Economic Association, vol. 65(3), pages 492-497, June.
    8. Hans P. Binswanger, 1974. "A Cost Function Approach to the Measurement of Elasticities of Factor Demand and Elasticities of Substitution," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 56(2), pages 377-386.
    9. Berndt, Ernst R & Savin, N Eugene, 1975. "Estimation and Hypothesis Testing in Singular Equation Systems with Autoregressive Disturbances," Econometrica, Econometric Society, vol. 43(5-6), pages 937-957, Sept.-Nov.
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