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Efficiency Implications of Corporate Diversification: Evidence from Micro Data

  • Ekaterina Emm
  • Jayant Kale
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    In this study, we contribute to the ongoing research on the rationales for corporate diversification. Using plant-level data from the U.S. Census Bureau, we examine whether combining several lines of business in one entity leads to increased productive efficiency. Studying the direct effect of diversification on efficiency allows us to discern between two major theories of corporate diversification: the synergy hypothesis and the agency cost hypothesis. To measure productive efficiency, we employ a non-parametric approach—a test based on Varian’s Weak Axiom of Profit Maximization (WAPM). This method has several advantages over other conventional measures of productive efficiency. Most importantly, it allows one to perform the efficiency test without relying on assumptions about the functional form of the underlying production function. To the best of our knowledge, this study is the first application of the WAPM test to a large sample of non-financial firms. The study provides evidence that business segments of diversified firms are more efficient compared to single-segment firms in the same industry. This finding suggests that the existence of the so-called ‘diversification discount’ cannot be explained by efficiency differences between multi-segment and focused firms. Furthermore, more efficient segments tend to be vertically integrated with others segments in the same firm and to have been added through acquisitions rather than grown internally. Overall, the results of this study indicate that corporate diversification is value-enhancing, and that it is not necessarily driven by managers’ pursuit of their private benefits.

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    File URL: ftp://ftp2.census.gov/ces/wp/2006/CES-WP-06-26.pdf
    File Function: First version, 2006
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    Paper provided by Center for Economic Studies, U.S. Census Bureau in its series Working Papers with number 06-26.

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    Length: 69 pages
    Date of creation: Nov 2006
    Date of revision:
    Handle: RePEc:cen:wpaper:06-26
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    1. Fried, Harold O. & Lovell, C. A. Knox & Schmidt, Shelton S. (ed.), 1993. "The Measurement of Productive Efficiency: Techniques and Applications," OUP Catalogue, Oxford University Press, number 9780195072181, March.
    2. J. Bradford Jensen & Robert H McGuckin & Kevin J Stiroh, 2000. "The Impact of Vintage and Survival on Productivity: Evidence from Cohorts of U.S. Manufacturing Plants," Working Papers 00-06, Center for Economic Studies, U.S. Census Bureau.
    3. Matsusaka, J.C., 1991. "Takeover Motives During the Conglomerate Merger Wave," Papers 91-33, Southern California - School of Business Administration.
    4. Klaus Gugler & Dennis C. Mueller & B. Burcin Yurtoglu & Christine Zulehner, 2001. "The Effects of Mergers: An International Comparison," CIG Working Papers FS IV 01-21, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
    5. Lewellen, Wilbur G, 1971. "A Pure Financial Rationale for the Conglomerate Merger," Journal of Finance, American Finance Association, vol. 26(2), pages 521-37, May.
    6. Jose Manuel Campa & Simi Kedia, 2002. "Explaining the Diversification Discount," Journal of Finance, American Finance Association, vol. 57(4), pages 1731-1762, 08.
    7. Frank R. Lichtenberg, 1990. "Industrial De-Diversification and Its Consequences for Productivity," Economics Working Paper Archive wp_35, Levy Economics Institute.
    8. Tauer, Loren W. & Stefanides, Zdenko, 1997. "Success In Maximizing Profits And Reasons For Profit Deviation On Dairy Farms," Working Papers 127823, Cornell University, Department of Applied Economics and Management.
    9. Randall Morck & Andrei Shleifer & Robert W. Vishny, 1989. "Do Managerial Objectives Drive Bad Acquisitions?," NBER Working Papers 3000, National Bureau of Economic Research, Inc.
    10. McGuckin, Robert H & Nguyen, Sang V & Andrews, Stephen H, 1992. "The Relationships among Acquiring and Acquired Firms' Product Lines," Journal of Law and Economics, University of Chicago Press, vol. 34(2), pages 477-502, October.
    11. Yakov Amihud & Baruch Lev, 1981. "Risk Reduction as a Managerial Motive for Conglomerate Mergers," Bell Journal of Economics, The RAND Corporation, vol. 12(2), pages 605-617, Autumn.
    12. John, Kose & Ofek, Eli, 1995. "Asset sales and increase in focus," Journal of Financial Economics, Elsevier, vol. 37(1), pages 105-126, January.
    13. Daley, Lane & Mehrotra, Vikas & Sivakumar, Ranjini, 1997. "Corporate focus and value creation Evidence from spinoffs," Journal of Financial Economics, Elsevier, vol. 45(2), pages 257-281, August.
    14. Demsetz, Harold, 1973. "Industry Structure, Market Rivalry, and Public Policy," Journal of Law and Economics, University of Chicago Press, vol. 16(1), pages 1-9, April.
    15. Stein, Jeremy C, 1997. " Internal Capital Markets and the Competition for Corporate Resources," Journal of Finance, American Finance Association, vol. 52(1), pages 111-33, March.
    16. Myers, Stewart C. & Majluf, Nicholas S., 1984. "Corporate financing and investment decisions when firms have information that investors do not have," Journal of Financial Economics, Elsevier, vol. 13(2), pages 187-221, June.
    17. Stewart C. Myers & Nicholas S. Majluf, 1984. "Corporate Financing and Investment Decisions When Firms Have InformationThat Investors Do Not Have," NBER Working Papers 1396, National Bureau of Economic Research, Inc.
    18. Sam Peltzman, 1977. "The Gains and Losses From Industrial Concentration," NBER Working Papers 0163, National Bureau of Economic Research, Inc.
    19. Comment, Robert & Jarrell, Gregg A., 1995. "Corporate focus and stock returns," Journal of Financial Economics, Elsevier, vol. 37(1), pages 67-87, January.
    20. Antoinette Schoar, 2002. "Effects of Corporate Diversification on Productivity," Journal of Finance, American Finance Association, vol. 57(6), pages 2379-2403, December.
    21. Myers, Stewart C. & Majluf, Nicolás S., 1945-, 1984. "Corporate financing and investment decisions when firms have information that investors do not have," Working papers 1523-84., Massachusetts Institute of Technology (MIT), Sloan School of Management.
    22. Chevalier Judith, 2004. "What Do We Know About Cross-subsidization? Evidence from Merging Firms," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 4(1), pages 1-29, April.
    23. Teece, David J., 1980. "Economies of scope and the scope of the enterprise," Journal of Economic Behavior & Organization, Elsevier, vol. 1(3), pages 223-247, September.
    24. Varian, Hal R, 1984. "The Nonparametric Approach to Production Analysis," Econometrica, Econometric Society, vol. 52(3), pages 579-97, May.
    25. John R. Graham & Michael L. Lemmon & Jack G. Wolf, 2002. "Does Corporate Diversification Destroy Value?," Journal of Finance, American Finance Association, vol. 57(2), pages 695-720, 04.
    26. David Hyland & J David Diltz, 2002. "Why Firms Diversify: An Empirical Examination," Financial Management, Financial Management Association, vol. 31(1), Spring.
    27. Sattar A. Mansi & David M. Reeb, 2002. "Corporate Diversification: What Gets Discounted?," Journal of Finance, American Finance Association, vol. 57(5), pages 2167-2183, October.
    28. Frank R. Lichtenberg & Donald Siegel, 1987. "Productivity and Changes in Ownership of Manufactoring Plants," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 18(3), pages 643-684.
    29. Berger, Philip G. & Ofek, Eli, 1995. "Diversification's effect on firm value," Journal of Financial Economics, Elsevier, vol. 37(1), pages 39-65, January.
    30. Vojislav Maksimovic & Gordon Phillips, 2002. "Do Conglomerate Firms Allocate Resources Inefficiently Across Industries? Theory and Evidence," Journal of Finance, American Finance Association, vol. 57(2), pages 721-767, 04.
    31. Eric J. Bartelsman & Wayne Gray, 1996. "The NBER Manufacturing Productivity Database," NBER Technical Working Papers 0205, National Bureau of Economic Research, Inc.
    32. Joseph P. H. Fan & Vidhan K. Goyal, 2006. "On the Patterns and Wealth Effects of Vertical Mergers," The Journal of Business, University of Chicago Press, vol. 79(2), pages 877-902, March.
    33. Ron S Jarmin & Javier Miranda, 2002. "The Longitudinal Business Database," Working Papers 02-17, Center for Economic Studies, U.S. Census Bureau.
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