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Economies of scope in financial services: A DEA efficiency analysis of the US insurance industry

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  • Cummins, J. David
  • Weiss, Mary A.
  • Xie, Xiaoying
  • Zi, Hongmin

Abstract

This paper investigates economies of scope in the US insurance industry over the period 1993-2006. We test the conglomeration hypothesis, which holds that firms can optimize by diversifying across businesses, versus the strategic focus hypothesis, which holds that firms optimize by focusing on core businesses. We analyze whether it is advantageous for insurers to offer both life-health and property-liability insurance or to specialize in one major industry segment. We estimate cost, revenue, and profit efficiency utilizing data envelopment analysis (DEA) and test for scope economies by regressing efficiency scores on control variables and an indicator for strategic focus. Property-liability insurers realize cost scope economies, but they are more than offset by revenue scope diseconomies. Life-health insurers realize both cost and revenue scope diseconomies. Hence, strategic focus is superior to conglomeration in the insurance industry.

Suggested Citation

  • Cummins, J. David & Weiss, Mary A. & Xie, Xiaoying & Zi, Hongmin, 2010. "Economies of scope in financial services: A DEA efficiency analysis of the US insurance industry," Journal of Banking & Finance, Elsevier, vol. 34(7), pages 1525-1539, July.
    • Handle: RePEc:eee:jbfina:v:34:y:2010:i:7:p:1525-1539
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    1. Laeven, Luc & Levine, Ross, 2007. "Is there a diversification discount in financial conglomerates?," Journal of Financial Economics, Elsevier, vol. 85(2), pages 331-367, August.
    2. Leverty, J. Tyler & Grace, Martin F., 2010. "The robustness of output measures in property-liability insurance efficiency studies," Journal of Banking & Finance, Elsevier, vol. 34(7), pages 1510-1524, July.
    3. Banker, Rajiv D. & Thrall, R. M., 1992. "Estimation of returns to scale using data envelopment analysis," European Journal of Operational Research, Elsevier, vol. 62(1), pages 74-84, October.
    4. Segal, Dan, 2003. "A Multi-product Cost Study of the U.S. Life Insurance Industry," Review of Quantitative Finance and Accounting, Springer, vol. 20(2), pages 169-186, March.
    5. Andrew M. Yuengert, 1993. "The measurement of efficiency in life insurance estimates of a mixed normal-gamma error model," Research Paper 9308, Federal Reserve Bank of New York.
    6. Comment, Robert & Jarrell, Gregg A., 1995. "Corporate focus and stock returns," Journal of Financial Economics, Elsevier, vol. 37(1), pages 67-87, January.
    7. Toivanen, Otto, 1997. "Economies of scale and scope in the Finnish non-life insurance industry," Journal of Banking & Finance, Elsevier, vol. 21(6), pages 759-779, June.
    8. Jensen, Michael C, 1986. "Agency Costs of Free Cash Flow, Corporate Finance, and Takeovers," American Economic Review, American Economic Association, vol. 76(2), pages 323-329, May.
    9. Andre P. Liebenberg & David W. Sommer, 2008. "Effects of Corporate Diversification: Evidence From the Property–Liability Insurance Industry," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 75(4), pages 893-919, December.
    10. J. David Cummins & Mary A. Weiss & Hongmin Zi, 1998. "Organizational form and efficiency: an analysis of stock and mutual property-liability insurers," Working Papers 98-19, Federal Reserve Bank of Philadelphia.
    11. Schmid, Markus M. & Walter, Ingo, 2009. "Do financial conglomerates create or destroy economic value?," Journal of Financial Intermediation, Elsevier, vol. 18(2), pages 193-216, April.
    12. Jeffrey R. Brown & Austan Goolsbee, 2002. "Does the Internet Make Markets More Competitive? Evidence from the Life Insurance Industry," Journal of Political Economy, University of Chicago Press, vol. 110(3), pages 481-507, June.
    13. David S. Scharfstein & Jeremy C. Stein, 2000. "The Dark Side of Internal Capital Markets: Divisional Rent‐Seeking and Inefficient Investment," Journal of Finance, American Finance Association, vol. 55(6), pages 2537-2564, December.
    14. Charnes, A. & Cooper, W. W. & Rhodes, E., 1978. "Measuring the efficiency of decision making units," European Journal of Operational Research, Elsevier, vol. 2(6), pages 429-444, November.
    15. Bernhard Mahlberg & Thomas Url, 2003. "Effects of the single market on the Austrian insurance industry," Empirical Economics, Springer, vol. 28(4), pages 813-838, November.
    16. Allen N. Berger & David B. Humphrey, 1992. "Measurement and Efficiency Issues in Commercial Banking," NBER Chapters, in: Output Measurement in the Service Sectors, pages 245-300, National Bureau of Economic Research, Inc.
    17. Berger, Allen N. & Demsetz, Rebecca S. & Strahan, Philip E., 1999. "The consolidation of the financial services industry: Causes, consequences, and implications for the future," Journal of Banking & Finance, Elsevier, vol. 23(2-4), pages 135-194, February.
    18. B. Elango & Yu‐Luen Ma & Nat Pope, 2008. "An Investigation Into the Diversification–Performance Relationship in the U.S. Property–Liability Insurance Industry," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 75(3), pages 567-591, September.
    19. John C. Panzar & Robert D. Willig, 1977. "Economies of Scale in Multi-Output Production," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 91(3), pages 481-493.
    20. Berger, Allen N & Cummins, J David & Weiss, Mary A, 1997. "The Coexistence of Multiple Distribution Systems for Financial Services: The Case of Property-Liability Insurance," The Journal of Business, University of Chicago Press, vol. 70(4), pages 515-546, October.
    21. Berger, Allen N. & Cummins, J. David & Weiss, Mary A. & Zi, Hongmin, 2000. "Conglomeration versus Strategic Focus: Evidence from the Insurance Industry," Journal of Financial Intermediation, Elsevier, vol. 9(4), pages 323-362, October.
    22. Cummins, J. David & Xie, Xiaoying, 2008. "Mergers and acquisitions in the US property-liability insurance industry: Productivity and efficiency effects," Journal of Banking & Finance, Elsevier, vol. 32(1), pages 30-55, January.
    23. Eling, Martin & Luhnen, Michael, 2010. "Efficiency in the international insurance industry: A cross-country comparison," Journal of Banking & Finance, Elsevier, vol. 34(7), pages 1497-1509, July.
    24. Robert H. Gertner & David S. Scharfstein & Jeremy C. Stein, 1994. "Internal versus External Capital Markets," NBER Working Papers 4776, National Bureau of Economic Research, Inc.
    25. Chaplinsky, Susan & Erwin, Gayle R., 2009. "Great expectations: Banks as equity underwriters," Journal of Banking & Finance, Elsevier, vol. 33(2), pages 380-389, February.
    26. Kittelsen,S.A.C., 1999. "Monte Carlo simulations of DEA efficiency measures and hypothesis tests," Memorandum 09/1999, Oslo University, Department of Economics.
    27. Robert H. Gertner & David S. Scharfstein & Jeremy C. Stein, 1994. "Internal versus External Capital Markets," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 109(4), pages 1211-1230.
    28. Rajiv D. Banker & Ram Natarajan, 2008. "Evaluating Contextual Variables Affecting Productivity Using Data Envelopment Analysis," Operations Research, INFORMS, vol. 56(1), pages 48-58, February.
    29. Yuengert, Andrew M., 1993. "The measurement of efficiency in life insurance: Estimates of a mixed normal-gamma error model," Journal of Banking & Finance, Elsevier, vol. 17(2-3), pages 483-496, April.
    30. Banker, Rajiv D & Maindiratta, Ajay, 1988. "Nonparametric Analysis of Technical and Allocative Efficiencies in Production," Econometrica, Econometric Society, vol. 56(6), pages 1315-1332, November.
    31. Fenn, Paul & Vencappa, Dev & Diacon, Stephen & Klumpes, Paul & O'Brien, Chris, 2008. "Market structure and the efficiency of European insurance companies: A stochastic frontier analysis," Journal of Banking & Finance, Elsevier, vol. 32(1), pages 86-100, January.
    32. Yukiko Hirao & Tomoo Inoue, 2004. "On the Cost Structure of the Japanese Property‐Casualty Insurance Industry," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 71(3), pages 501-530, September.
    33. R. D. Banker & A. Charnes & W. W. Cooper, 1984. "Some Models for Estimating Technical and Scale Inefficiencies in Data Envelopment Analysis," Management Science, INFORMS, vol. 30(9), pages 1078-1092, September.
    34. 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.
    35. Servaes, Henri, 1996. "The Value of Diversification during the Conglomerate Merger Wave," Journal of Finance, American Finance Association, vol. 51(4), pages 1201-1225, September.
    36. Berger, Allen N. & Humphrey, David B. & Pulley, Lawrence B., 1996. "Do consumers pay for one-stop banking? Evidence from an alternative revenue function," Journal of Banking & Finance, Elsevier, vol. 20(9), pages 1601-1621, November.
    37. Cummins, J. David & Weiss, Mary A., 1993. "Measuring cost efficiency in the property-liability insurance industry," Journal of Banking & Finance, Elsevier, vol. 17(2-3), pages 463-481, April.
    38. Panzar, John C & Willig, Robert D, 1981. "Economies of Scope," American Economic Review, American Economic Association, vol. 71(2), pages 268-272, May.
    39. J. David Cummins & Mary A. Weiss, 1998. "Analyzing Firm Performance in the Insurance Industry Using Frontier Efficiency Methods," Center for Financial Institutions Working Papers 98-22, Wharton School Center for Financial Institutions, University of Pennsylvania.
    40. J. David Cummins & Mary A. Weiss & Hongmin Zi, 1999. "Organizational Form and Efficiency: The Coexistence of Stock and Mutual Property-Liability Insurers," Management Science, INFORMS, vol. 45(9), pages 1254-1269, September.
    41. Rajiv D. Banker, 1993. "Maximum Likelihood, Consistency and Data Envelopment Analysis: A Statistical Foundation," Management Science, INFORMS, vol. 39(10), pages 1265-1273, October.
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