Economies of Scale and Scope in the Swiss Multi-Utilities Sector
AbstractThis paper explores the economies of scale and scope in the electricity, gas and water utilities. These issues have a crucial importance in the actual policy debates about unbundling the integrated utilities into separate entities, a policy which has often been supported by the ongoing reforms in the deregulation of network industries. This paper argues that the potential improvements in efficiency through unbundling should be assessed against the loss of scope economies. Several econometric specifications including a random-coefficient model have been used to estimate a cost function for a sample of utilities distributing electricity, gas and/or water to the Swiss population. The estimates of scale and scope economies have been compared across different models and the effect of heterogeneity among companies have been explored. While indicating considerable scope and scale economies overall, the results suggest a significant variation in scope economies across companies due to unobserved heterogeneity.
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Bibliographic InfoPaper provided by CEPE Center for Energy Policy and Economics, ETH Zurich in its series CEPE Working paper series with number 07-59.
Length: 29 pages
Date of creation: Sep 2007
Date of revision:
Find related papers by JEL classification:
- C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Longitudinal Data; Spatial Time Series
- D24 - Microeconomics - - Production and Organizations - - - Production; Cost; Capital; Capital, Total Factor, and Multifactor Productivity; Capacity
- L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
- L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance
- L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
- L95 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Gas Utilities; Pipelines; Water Utilities
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