本研究透過Lerner 指數衡量其台灣產險市場競爭力，以動態追蹤資料分析公司績效與市場競爭力之關聯性，並探討不同公司型態之產物保險公司在績效與市場競爭力之關聯上是否存在差異。實證結果發現台灣產險業為寡占性競爭市場，產險公司之核保獲利績效、投資績效與業務績效在第三階段實施前後皆對市場競爭力均有顯著正向影響且具正向遞延效果。第三階段費率自由化實施前，金控體系與非金控體系產險公司當期之市場競爭力對營運績效皆有顯著負向影響，且金控體系產險公司之負向影響更為強烈。而在第三階段費率自由化實施後，整體產險業當期之市場競爭力對營運績效轉變為顯著正向影響，且外商產險公司與非金控體系公司更有顯著正向之遞延效果。

This research measures the competitiveness of Taiwanese non-life insurance market through the Lerner index to explore the relationship of performance and market competitiveness by dynamic panel data analysis and the difference of the relationship between different corporate types. The empirical results show that Taiwanese non-life insurance market is an oligopolistic competitive market. The underwriting profitability performance, investment performance and business performance of non-life insurers all have a significant positive effect on the market competitiveness and have a positive deferral effect before and after the third phase rate liberalization. Before the third phase rate liberalization, the market competitiveness of financial holding insurers and non-financial holding insurers had a significant negative impact on operating performance, and the negative impact of financial holding insurers was even stronger. The market competitiveness of the current property and casualty insurance industry had a significant positive effect on operating performance with a positive deferral effect after the third phase rate liberalization.

王財驛、卓翠月、黃明祥，2011，「財產保險業經營績效之研究」，財金論文叢刊，14卷：1~15。(Wang, T. Y., Cho, T. Y., and Huang, M. H., 2011, “The Study on the Efficiency of Property/Casualty Insurance Industry,” Financial Paper Series, Vol. 14, 1-15.)
成曉光，2009，「企業核心競爭力影響要素分析」，南京財經大學學報，4期：73~76。(Cheng, X. G., 2009, “Analysis on the Influencing Factors for the Core Competence of Corporation,” Journal of Nanjing University of Finance and Economics, No. 4, 73-76.)
李明輝、黃葉苨、劉莉亞，2018，「市場競爭、銀行市場勢力與流動性創造效率-來自中國銀行業的證據」，財經研究，44卷2期：103~114。(Li, M. H., Huang, Y. N., and Liu, L. Y., 2018, “Market Competition, Bank Market Power and Liquidity Creation Efficiency: Evidence from the Chinese Banking Industry,” Journal of Finance and Economics, Vol. 44, No. 2, 103-114.)
李知臨、李德惠，2014，「我國商業銀行貸款價格競爭與風險的關係研究－基於我國主要非國有商業銀行的平衡面板數據分析」，南方金融，6期：4~9。(Li, J. L. and Li, D. H., 2014, “The Study on the Correlation between Commercial Banks' Loan Price Competition and Bank Risk in China: Based on the Panel Data of Non-state-owned Banks,” Southern Finance, No. 6, 4-9.)
汪可，2018，「金融科技、價格競爭與銀行風險承擔」，哈爾濱商業大學學報(社會科學版)，158期：40~48。(Wang, K., 2018, “Fintech, Price Competition and Banks' Risk-taking,” Journal of Harbin University of Commerce (Social Science Edition), No. 158, 40-48.)
周天芸、姜禹杉，2017，「競爭度、集中度和金融體系的穩定性－基於新興市場經濟國家的數據」，金融發展研究，1卷：63~69。(Zhou, T. Y. and Jiang, Y. S., 2012, “Competition, Concentration and Stability of the Financial System - Based on the Data of the Emerging Markets,” Financial Development Research, Vol. 1, 63-69.)
林明俊、陳青浩、陳冠志，2010，「產險業財業務績效與市占率之分析」，保險經營與制度，9卷1期：51~68。(Lin, M., Chen, C. H., and Chen, G. C., 2010, “An Analysis of Financial and Business Performance and Market Share in Non-Life,” Insurance Issues and Practices, Vol. 9, No. 1, 51-68.)
高瑋，2012，「中國銀行業競爭與穩定關係研究」，湖北經濟學院學報，10卷2期：32~38。(Gao, W., 2012, “Research on the Relationship between Competition and Stability in China's Banking Industry,” Journal of Hubei University of Economics, Vol. 10, No. 2, 32-38.)
張簡永章、曾漢文、陳惠萍，2017，「多角化策略與財產保險人績效：股權結構重要嗎？」，藝見學刊，13期：41~56。(Chang-Chien, I. J., Tzeng, H. W., and Chen, H. P., 2017, “Diversification Strategy and Non-Life Insurer Performance: Does Ownership Structure Matter?,” Yi Jian Academic Journal, No. 13, 41-56.)
曹永棟、陸躍祥，2012，「城市商業銀行競爭力指標體系及其對策設計」，改革，1期：66-74。(Cao, Y. D. and Lu, Y. X., 2012, “Competitiveness Index System of City Commercial Banks and Its Countermeasure Design,” Reform, No. 1, 66-74.)
梁榮輝、廖振盛，2008，「台灣地區產險業經營績效因素之研究-財務面的實證分析」，保險專刊，24卷1期：81~102。(Liang, J. H. and Liao, C. S., 2008, “A Study on Determinants of the Performance of Property-Liability Insurance,” Insurance Monograph, Vol. 24, No. 1, 81-102.)
許良賢，2014，「產險公司競逐市場地位之主要經營策略探討」，核保學報，21期：75~100。(Hsu, L. X., 2009, “Discussion on the Main Management Strategies of Property Insurance Companies Competing for Market Position,” Journal of Underwriters, Vol. 21, 75-100.)
陳冠志，2018，「台灣地區產險業經營績效之研究」，保險學報，13卷：39~70。(Chen, G. C., 2018, “A Study on the Operating Performance of Non-Life Insurance Industry in Taiwan,” Journal of Insurance, Vol. 13, 39-70.)
陳冠志、張瑞益、李七花，2020，「中國財產保險業多元化經營與財務績效之非線性關聯分析」，中山管理評論，28卷3期：507~545。(Chen, G. C., Chang, J. I., and Li, Q., 2020, “An Analysis of the Nonlinear Relationship between Diversification and Financial Performance of Chinese Non-Life Insurance Industry,” Sun Yat-sen Management Review, Vol. 28, No. 3, 507-545.)
陳洪轉，2007，「基於價值鏈的商業銀行核心競爭力影響要素研究」，金融教學與研究，1期：16-18。(Chen, H. Z., 2007, “Research on the Influence Essential Factors of Commercial Bank Core Competitive Ability Based on Value Chain,” Finance Teaching and Research, No. 1, 16-18.)
陳建勝、陳聰賢、陳美菁、劉儀美，2008，「我國壽險產業結構對經營策略與獲利能力影響之研究」，朝陽商管評論，7卷1期：73~88。(Chen, J. S., Chen, T. H., Chen, M. C. and Liu, Y. M., 2008, “The Effect of Industrial Structure on Management Strategy and Profitability for Life Insurance in Taiwan,” Chaoyang Business and Management Review, Vol. 7, No. 1, 73-88.)
陳家祥、何健德、鄒鴻泰、羅兆凱，2009，「大量客製化能力與敏捷性之研究：前置因素與對企業競爭優勢之影響」，電子商務學報，11卷3期：489~518。(Chen, J. S., Ho, C. T., Tsou, H. T., and Lo, T. K., 2009, “The Study of Mass Customization Capability and Agility: Antecedents and the Effects on Firm Competitive Advantage,” Journal of Electronic Commerce, Vol. 11, No. 3, 41-56.)
陳嘉文，2009，「衡量產險業真實核保利潤訂定經營績效指標之研究」，核保學報，17期：61~82。(Chen, J. W., 2009, “Research on the Establishment of Operating Performance Indicators for Measuring the Real Underwriting Profits of the Property Insurance Industry,” Journal of Underwriters, Vol. 17, 61-82.)
黃台心、江典霖，2014，「我國銀行業市場競爭度與金融創新之關聯」，中央銀行季刊，36卷2期：15~52。(Huang, T. H. and Jiang, D. L., 2014, “The Relationship between the Market Competition of my Country's Banking Industry and Financial Innovation,” Central Bank Quarterly, Vol. 36, No. 2, 15-52.)
黃台心、鍾銘泰、陳世章，2018，「臺灣證券業市場競爭度與創新之研究」，證券市場發展季刊，30卷2期：151~194。(Huang, T. H., Chung, M. T. and Chen, S. J., 2018, “Market Competition and Innovation in Taiwan’s Securities Industry,” Review of Securities and Futures Markets, Vol. 30, No. 2, 151-194.)
黃旭男、吳國華，2001，「台灣地區壽險業經營續效之衡量」，管理與系統，8卷4期：401~420。(Hwang, S. N. and Wu, K. H., 2001, “Measurement of Operating Performance of Life Insurance Industry in Taiwan,” Journal of Management and System, Vol. 8, No. 4, 401-420.)
黃江川、孫嫚萍、張雅婷，2015，「本國與外商保險公司獲利能力影響因素之探討」，財金論文叢刊，23卷：66~77。(Huang, J. C., Sun, M. P., and Chang, Y. T., 2015, “Factors Influencing the Profitability of Domestic and Foreign Insurance Companies in Taiwan,” Financial Paper Series, Vol. 23, 66-77.)
廖振盛，2010，「費率自由化前後產險業經營績效變化分析-隨機邊界法之應用」，臺灣銀行季刊，61卷2期：46~59。(Liao, C. S., 2010, “Analysis of Changes in the Operating Performance of the Property Insurance Industry before and after Rate Liberalization - the Application of the Stochastic Boundary Method,” Bank of Taiwan Quarterly, Vol. 61, No. 2, 46-59.)
趙碧瑩，2019，「中國商業銀行競爭力評價與影響因素研究」，金融監管研究，89卷5期：70-82。(Zhao, B. Y., 2019, “Research on the Competitiveness Evaluation and Influencing Factors of Chinese Commercial Bank,” Financial Supervision Research, Vol. 89, No. 5, 70-82.)
劉景中，2009，「銀行集中度、銀行市場競爭度與銀行風險-台灣實證研究」，經濟論文，37卷：101~135。(Liu, J. C., 2009, “Bank Concentration, and Bank Competition and Bank Risk: Evidence from Taiwan,” Academia Economic Papers, Vol. 37, 101-135.)
劉景中，2011，「銀行集中度及效率對市場競爭度的影響：台灣實證研究」，經濟論文叢刊，39卷：115~173。(Liu, J. C., 2009, “Bank Concentration, and Bank Competition and Bank Risk: Evidence from Taiwan,” Taiwan Economic Review, Vol. 39, 115-173.)
蔣才芳、陳收，2014，「中國人壽保險公司經營績效的DEA有效性分析」，財經理論與實踐，190卷：27~32。(Jiang, C. and Chen, C., 2014, “Analysis of DEA Effectiveness of Business Performance of China Life Insurance Company,” Finance and Economics Theory and Practice, No. 4, 27-32.)
蔣永丹、袁鯤，2017，「銀行市場競爭水準對收入多元化影響研究－基於中國銀行業的非平衡面板模型」，財務與金融，165期：16~23。(Jiang, Y. D. and Yuan, K., 2017, “The Impact of Bank Market Competition on the Revenue Diversification - Based on the Unbalanced Panel Model in the Banking Industry of China,” Finance, No. 165, 16-23.)
鄭士卿、汪琪玲、蕭維萱，2017，「保險業集中度及效率對市場競爭程度之影響：以日本產險業為例」，臺大管理論叢，27卷2S期：289~318。(Jeng, S. C., Wang, C. L., and Hsiao, W. H., 2017, “The Impact of Concentration and Efficiency on Market Competition: An Analysis of Japanese Non-Life Insurance Industry,” NTU Management Review, Vol. 27, No. 2S, 289-318.)
簡仲明，2009，「產險業費率自由化費用率管理之潛在風險與因應對策」，保險大道。16期：26-30。(Chien, C. M., 2009, “Potential Risks and Countermeasures of Rate Liberalization in the Property Insurance Industry,” Journal of Insurance Avenue Society, No. 16, 26-30.)
Aghion, P., Bloom, N., Blundell, R., Griffith, R., and Howitt, P., 2005, “Competition and innovation: An inverted-U relationship,” The Quarterly Journal of Economics, Vol. 120, No. 2, 701-728.
Albaity, M., Mallek, R. S., and Noman, A. H. M., 2019, “Competition and Bank Stability in the MENA Region: The Moderating Effect of Islamic versus Conventional Banks,” Emerging Markets Review, Vol. 38, 310-325.
Ambrose, J. M. and Seward, J. A., 1988, “Best’s Ratings, Financial Ratios and Prior Probabilities in Insolvency Prediction,” Journal of Risk and Insurance, Vol. 55, No. 2, 229-244.
Angelini, P. and Cetorelli, N., 2003, “The Effects of Regulatory Reform on Competition in the Banking Industry,” Journal of Money, Credit, and Banking, Vol. 35. No. 5, 663-684.
Anginer, D., Demirguc-Kunt, A., and Zhu, M., 2014, “How Does Competition Affect Bank Systemic Risk?,” Journal of Financial Intermediation, Vol. 23, 1-26.
Arellano, M. and Bover, O., 1995, “Another Look at the Instrumental Variables Estimation of Error-Components Models,” Journal of Econometrics, Vol. 68, 29-51.
Azmi, W., Ali, M., Arshad, S., and Rizvi, S. A. R., 2019, “Intricacies of Competition, Stability, and Diversification: Evidence from Dual Banking Economies,” Economic Modelling, forthcoming.
Barney, J. B., and Zajac, E. J., 1994, “Competitive Organizational Behavior: Toward an Organizationally‐Based Theory of Competitive Advantage,” Strategic Management Journal, Vol. 15, No. 1, 5-9.
Basturk, F. H., 2012, “Characteristics and Competition Structure of Turkish Insurance Industry,” Procedia - Social and Behavioral Sciences, Vol. 62, 1084-1088.
Beck, T., De Jonghe, O., and Schepens, G., 2013, “Bank Competition and Stability: Cross- Country Heterogeneity,” Journal of Financial Intermediation, Vol. 22, No. 2, 218-244.
Biener, C., Eling, M., and Wirfs, J. H., 2016, “The Determinants of Efficiency and Productivity in the Swiss Insurance Industry,” European Journal of Operational Research, Vol. 248, No. 2, 703-714.
Brockett, P. L., Cooper, W. W., Golden, L. L., and Utai, P., 1994, “A Neural Network Method for Obtaining an Early Warning of Insurer Insolvency,” Journal of Risk and Insurance, Vol. 61, No. 3, 402-425.
Browne, M. J. and Robert, E., 1995, “Economic and Market Predictors Insolvencies in the Property-Liability Insurance Industry,” Journal of Risk and Insurance, Vol. 62, No. 2, 309-328.
Camino-Mogro, S., Armijos-Bravo, G., and Cornejo-Marcos G., 2019, “Competition in the Insurance Industry in Ecuador: An Econometric Analysis in Life and Non-Life Markets,” The Quarterly Review of Economics and Finance, Vol. 71, 291-302.
Căpraru, B., Ihnatov, I., and Pintille, N. L., 2020, “Competition and Diversification in the European Banking Sector. ” Research in International Business and Finance, forthcoming.
Căpraru, B. and Moise, N., 2015, “Insurance Market's Competition in Romania after 2007,” Procedia Economics and Finance, Vol. 20, 112-118.
Carbó, S., Humphrey, D., Maudos, J., and Molyneux, P., 2009, “Cross-Country Comparisons of Competition and Pricing Power in European Banking,” Journal of International Money and Finance, Vol. 28, No. 1, 115-134.
Casu, B. and Girardone, C., 2006, “Bank Competition, Concentration and Efficiency in the Single European Market,” The Manchester School, Vol. 74, No. 4, 441-468.
Chandler, G. and Hanks, S. H., 1994, “Market Attractiveness, Resource-Based Capabilities; Venture Strategies and Venture Performance,” Journal of Business Venturing, Vol. 9, 331-349.
Chen, C. H., Lin, M., and Chen, G. C., 2011, “Does Financial and Business Performance Affect Market Share? - A Case of Non-Life Insurance Industry in Taiwan,” Journal of Statistics and Management Systems, Vol. 14, No. 2, 453-465.
Chen, G. C. and Xu, H., 2016, “A Study of the Financial/Business Performance and Market Share of Non-Life Insurance Industry in Taiwan,” The Standard International Journals, Vol. 4, No. 8, 98-105.
Chen, Y, B., Wei, X. H., Zhang, L. L., and Shi, Y., 2013, “Sectora Diversification and the Banks’ Return and Risk: Evidence from Chinese Listed Commercial Banks,” Procedia Computer Science, Vol. 18, 1737-1746.
Choi, B. P. and Weiss, M. A., 2005, “An Empirical Investigation of Market Structure, Efficiency, and Performance in Property-Liability Insurance,” Journal of Risk and Insurance, Vol. 72, 635-673.
Clark, E., Mare, D. S., and Radic, N., 2018, “Cooperative banks: What do We Know about Competition and Risk Preferences?,” Journal of International Financial Markets, Institutions & Money, Vol. 52, 90-101.
Clerides, S., Delis, M. D., and Kokas, S., 2015, “A New Data Set on Competition in National Banking Markets,” Financial Market Institutions & Instruments, Vol. 24, No. 2, 267-311.
Diewert, W. E., 1974, “Applications of Duality Theorem.” Stanford Institute for Mathematical Studies in the Social Science, Vol. 55, 43-68.
Dumitrescu, E. I. and Hurlin, C., 2012, “Testing for Granger Non-Causality in Heterogeneous Panels. Economic Modelling, Vol. 29, No. 4, 1450-1460.
Elango, B., Ma, Y. L., and Pope, N., 2008, “An Investigation into The Diversification Performance in The U.S. Property-liability Insurance Industry,” Journal of Risk and Insurance, Vol. 75, No. 3, 567-591.
Fernández de Guevara, J. and Maudos, J., 2007, “Explanatory Factors of Market Power in the Banking System,” The Manchester School, Vol. 75, No. 3, 275-296.
Fernández de Guevara, J., Maudos, J., and Pérez, F., 2005, “Market Power in European Banking Sectors,” Journal of Financial Services Research, Vol. 27, No. 2, 109-137.
Gilbert, R., 2006, “Looking for Mr. Schumpeter: Where are We in the Competition- Innovation Debate?” Innovation Policy and the Economy, 6, 159-215.
Grant, R. M., 1991, “The Resource-Based Theory of Competitive Advantage: Implications for Strategy Formulations,” California Management Review, Vol. 33, No. 3, 3-23.
Grosfeld, I. and Tressel, T., 2002, “Competition and Ownership Structure: Substitutes or Complements? Evidence from the Warsaw Stock Exchange,” Economic of Transition, Vol. 10, No. 3, 525-551.
Hertenstein, J. H. and Platt, M. B., 2000, “Performance Measures and Management Control in New Product Development,” Accounting Horizons, Vol. 14, No. 3, 303-323.
Holtz-Eakin, D., Newey, W. and Rosen, H. S., 1988, “Estimating Vector Autoregressions with Panel Data,” Econometrica, Vol. 56, No. 6, 1371-1395.
Im, K. S., Pesaran, M. H., and Shin, Y., 2003, “Testing for Unit Roots in Heterogeneous Panels,” Journal of Econometrics, Vol. 115, 53-74.
Kang, H. K., Lee, S., and Yang, H., 2011, “The Effects of Product Diversification on Firm Performance and Complementarities between Products: A Study of US Casinos,” International Journal of Hospitality Management, Vol. 30, No. 2, 409-421.
Lampel, J. and Giachetti, C., 2013, “International Diversification of Manufacturing Operations: Performance Implications and Moderating Forces,” Journal of Operations Management, Vol. 31, No. 4, 213-227.
Lerner, A. P., 1934, “The Concept of Monopoly and the Measurement of Monopoly Power,” Review of Economic Studies, Vol. 1, No. 3, 157-175.
Levin, A., Lin, C. F., and Chu, C. S. J., 2002, “Unit Root Tests in Panel Data: Asymptotic and Finite-Sample Properties,” Journal of Econometrics, Vol. 108, 1-24.
Long, C. and Vickers-Koch, M, 1995, “Using Core Capabilities to Create Competitive Advantage,” Organizational Dynamics, Vol. 24, No. 1, 7-22.
Lopez, L. and Weber, S., 2017, “Testing for Granger Causality in Panel Data,” The State Journal: Promoting Communications on Statistics and Stata, Vol. 17, No. 4, 972-984.
Ma, Y. and Elango, B., 2008, “When do International Operations Lead to Improved Performance? An Analysis of Property-Liability Insurer,” Risk Management and Insurance Reviews, Vol. 11, No. 1, 141-155.
Maudos J. and Fernández de Guevara, J., 2004, “Factors Explaining the Interest Margin in the Banking Sectors of the European Union,” Journal of Banking and Finance, Vol. 28, 2259-2281
Nguyen, M., Perera, S., and Skully, M., 2012, “Bank Market Power and Revenue Diversification: Evidence from Selected ASEAN Countries,” Journal of Asian Economics, Vol. 23, 688-700.
Nguyen, M., Perera, S., and Skully, M., 2016, “Bank Market Power, Ownership, Regional Presence and Revenue Diversification: Evidence from Africa,” Emerging Markets Review, Vol. 27, 36-62.
Pedroni, P., 1999, “Critical Values for Cointegration Tests in Heterogeneous Panels with Multiple Regressors,” Oxford Bulletin of Economics and Statistics, Vol. 61, 653-670.
Phan, H. T., Anwar, S., Alexander, W. R. J., and Phan, H. T. M., 2019, “Competition, Efficiency and Stability: An Empirical Study of East Asian Commercial Banks,” North American Journal of Economics and Finance, Vol. 50, forthcoming.
Porter, M. E., 1990, “The Competitive Advantage of Nations,” Harvard Business Review, Vol. 68, No. 2, 73-93.
Sargan, J. D., 1958, “The Estimation of Economic Relationships Using Instrumental Variables,” Econometrica, Vol. 26, 393-415.
Song, S., Park, S., and Lee, S., 2017, “Impacts of Geographic Diversification on Restaurant Firms’ risk: Domestic vs. International Diversification,” International Journal of Hospitality Management, Vol. 61, 107-118.
Steers, R., 1975, “Problems in the Measurement of Organizational Effectiveness,” Administrative Science Quarterly, Vol. 20, 546-558.
Tan, Y. and Floros, C., 2014, “Risk, Profitability, and Competition: Evidence from the Chinese Banking Industry,” Journal of Developing Areas, Vol. 48, No. 3, 303-319.
Tan, Y., 2016, “The Impacts of Risk and Competition on Bank Profitability in China,” Journal of International Financial Markets, Institutions and Money, Vol. 40, 85-110.
Trinugroho, I., Risfandy, T., and Ariefianto, M. D., 2018, “Competition, Diversification, and Bank Margins: Evidence from Indonesian Islamic Rural Banks,” Borsa Istanbul Review, Vol. 18, No. 4, 349-358.
Zander, U. and Kogut, B., 1995, “Knowledge and the Speed of the Transfer and Imitation of Organizational Capabilities: An Empirical Test,” Organization Science, Vol. 6, No. 1, 76-92.