Abstract
This study explores the relationship between cost inefficiency and profitability in the U.S. life insurance industry. Earnings have particular importance to life insurance companies because earnings and capital determine the viability of the insurer. Since the life insurance industry is mature and highly competitive, cost efficiency may be the main driver of profitability. We derive cost efficiency using the stochastic frontier (SF) method allowing the mean inefficiency to vary with organizational form and the outputs. In addition, the estimation of the cost efficiency measure takes into account the underlying accounting concepts that generate the data and, consequently, the product mix (long-duration policies vs. short-duration policies) to avoid distorted estimates. Our results suggest that cost inefficiency in the life insurance industry is substantial relative to earnings, and that inefficiency is negatively associated with profitability measures such as the return on equity. The analysis of inefficiency and organizational form suggest that stock (shareholder-owned) companies are as efficient and profitable as mutual (policyholder-owned) companies.
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References
Aigner, D., K. Lovell and P. Schmidt. (1977). “Formulation and Estimation of Stochastic Frontier Production Function Models.” International Economic Review 17, 377–396.
Cummins, J. D. and H. Zi. (1998). “Comparison of Frontier Efficiency Models: An Application to the U.S. Life Insurance Industry.” Journal of Productivity Analysis 10, 131–152.
Fama, F. E. and M. C. Jensen. (1993). “Separation of Ownership and Control.” Journal of Law and Economics 26, 301–325.
Fecher, F., D. Kessler, S. Perelman and P. Pestieau. (1993). “Productive Performance of the French Insurance Industry.” Journal of Productivity Analysis 4, 77–93.
Gardner, L. and M. F. Grace. (1993). “X-Efficiency in the U.S. Life Insurance Industry.” Journal of Banking and Finance 17, 497–510.
Geehan, R. (1986). “Economies of Scale in Insurance: Implications for Regulation.” The Insurance Industry in Economic Development, 137–160.
Gilligan, T. and M. Smirlock. (1984). “Scale and Scope Economies in the Multi-Product Banking Firm.” Journal of Monetary Economics 1, 203–220.
Grace, F. M. and S. G. Timme. (1992). “An Examination of Cost Economics in the United States Life Insurance Industry.” Journal of Risk and Insurance 59, 72–103.
Greene, W. (2003). “The Invariance Assumption in Panel Data Studies of Technical Inefficiency Based on the Stochastic Frontier Model.” Manuscript, Stern School of Business, New York University, Department of Economics.
Huang, C. and J. Liu. (1994). “Estimation of a Non-Neutral Stochastic Frontier Production Function.” Journal of Productivity Analysis 5, 171–180.
Jensen, M. C. and W. H. Meckling. (1976). “Theory of the Firm: Managerial Behavior Agency Costs and Ownership Structure.” Journal of Financial Economics 3, 305–360.
Jondrow, J., K. Lovell, I. Materov and P. Schmidt. (1982). “On the Estimation of Technical Inefficiency in the Stochastic Frontier Production Function Model.” Journal of Econometrics 19, 233–238.
Kaplan, R. S. and D. P. Norton. (1992). “The Balanced Scorecard-Measures that Drive Performance.” Harvard Business Review 74(1), 71–79.
Kumbhakar, S., S. Ghosh and J. McGuckin. (1991). “A Generalized Production Frontier Approach for Estimating Determinants of Inefficiency in U.S. Dairy Farm.” Journal of Business and Economic Statistics 9, 279–286.
Life Office Management Association (LOMA), Inc. (1998). Expense Management Program (Emap) Manual, Expense Year 1997, February 1998.
Mayers, D. and W. S. Clifford, Jr. (1988). “Ownership Structure Across Lines of Property-Casualty Insurance.” Journal of Law and Economics 41, 351–378.
Mayers, D. and W. S. Clifford, Jr. (1986). “Ownership Structure and Control: The Mutualization of Stock Life Insurance Companies.” Journal of Financial Economics 16, 73–98.
Meeusen, W. and J. Van Den Broeck. (1977). “Efficiency Estimation from Cobb-Douglas Production Functions with Composed Error.” International Economic Review 18, 435–444.
Mester, L. J. (1987). “A Multiproduct Cost Study of Savings and Loans.” Journal of Finance 42, 423–445.
Reifschnieder, D. and R. Stevenson. (1991). “Systematic Departures from the Frontier: A Framework for the Analysis of Firm Inefficiency.” International Economic Review 32, 715–723.
Segal, D. (2003). “A Multi-Product Cost Study of the U.S. Life Insurance Industry.” Review of Quantitative Finance and Accounting 20(2), 169–186.
Stevenson, E. R. (1980). “Likelihood Functions For Generalized Stochastic Frontier Estimation.” Journal of Econometrics 13(1), 57–66.
Yuengert, A. M. (1993). “The Measurement of Efficiency in Life Insurance: Estimates of a Mixed Normal-Gamma Error Model.” Journal of Banking and Finance 17, 483–496.
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Greene, W.H., Segal, D. Profitability and Efficiency in the U.S. Life Insurance Industry. Journal of Productivity Analysis 21, 229–247 (2004). https://doi.org/10.1023/B:PROD.0000022092.70204.fa
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DOI: https://doi.org/10.1023/B:PROD.0000022092.70204.fa