本研究旨在透過董事會與股權結構，研究企業在面臨未來不確定狀況時，對於決定重要資本投資決策時是否會是影響過度樂觀傾向的因素，並嘗試以董事會與股權結構及企業資本投資決策的關係，探討是不是影響企業過度樂觀資本投資決策的重要關鍵。研究對象為國內全體上市、上櫃企業，探討資本支出增加的樣本之企業管理者過度樂觀投資決策是否有受到董事會及股權結構的影響，資本投資資料5,004個，涵蓋2003年至2008年；考慮資本投資後之經營績效具有遞延效果，故整體的研究期間為2003年至2011年，期間共計9年。
    依實證結果發現，資本投資變動比率與企業資本投資後經營績效間的關聯性，呈現顯著負向的關係，表示企業管理者在增加資本投資後，反而會讓企業經營績效降低。顯示企業在資本投資決策上，可能因高估投資案獲利或低估風險，資本支出後經營績效變差。本研究驗證 Heaton (2002) 提出的過度樂觀理論，即管理者存有過度樂觀之情形而有高估投資獲利的能力或低估其投資案的風險，甚而投資淨現值為負的投資案，使企業資本投資後的經營績效變差。
    文中將董事會與股權結構與資本投資變動比率做調節效果進行實證研究，探討是否會對企業過度樂觀投資決策存有顯著影響。實證結果顯示董事長是否兼任總經理、股權偏離度，與資本投資後之經營績效間均呈現負向顯著影響。機構法人持股比率、企業經營者持股比率是否設立獨立董事，均與資本投資後之經營績效間均呈現正向顯著關係。綜上所述，實證結果顯示董事會與股權結構是管理者過度樂觀決策的影響因素，可透過董事會與股權結構加強企業治理機制，有效達到企業經營績效。

This study aims to explore whether board structure and ownership structure are the factors affecting the tendency of overoptimism towards making important capital investment decisions when the enterprise is faced with future uncertainty. Moreover, it attempts to explore whether the correlation between board structure, ownership structure and capital investment decision is the key to affect the enterprise overoptimism towards making important capital investment decisions. With all listed and GTSM-listed companies in Taiwan as research subjects, it discusses whether the enterprise managers of the samples increasing capital expenses are affected by the board structure and ownership structure when they show overoptimism towards the investment decisions. There are 5,004 data on capital investment, from 2003 to 2008. Considering the lag effect of operating performance after capital investmen Thus, the entire study lasts for 9 years from 2003 to 2011.
    As shown in the empirical results, the rate of change of capital investment shows significant negative correlation with the operating performance after the enterprise capital investment. It indicates after the enterprise managers increase capital investment, the operating performance of the enterprise will reduce instead. In other words, when making capital investment decisions, the enterprise may overestimate the investment profitability or underestimate the investment risk, leading to poorer operating performance after capital investment. This study verifies the overoptimism theory proposed by Heaton (2002), which states the managers may overestimate the investment profitability or underestimate the investment risk due to the overoptimism, as a result, they will be involved in the investment case with negative net present value, leading to poorer operating performance after capital investment.
    In this paper, it conducts empirical study on moderating effect between board structure, ownership structure and rate of change of capital investment, so as to explore whether it has significant influence on the enterprise overoptimism towards the investment decisions. The empirical results show whether the chairman holding the post of general manager and ownership deviation have significant negative influence on of operating performance after capital investment. show significant positive correlation with of operating performance after capital investment, including shareholding ratio of institutional investors, shareholding ratio of enterprise operators and whether independent director is set up. To sum up, the empirical results show the board structure and ownership structure are the factors affecting the managers’ overoptimism towards decision making, and the enterprise governance mechanism can be enhanced to effectively achieve enterprise operating performance through board structure and ownership structure.

目錄
第壹章  緒論	1
第一節  研究背景與動機	1
第二節  研究目的	4
第三節  研究架構流程	6
第貳章  文獻探討	6
第一節  過度樂觀	6
第二節  董事會結構與企業過度樂觀決策	10
第三節  股權結構與企業過度樂觀決策	13
第參章  研究方法	18
第一節  研究架構與研究假說	18
第二節  變數衡量與實證模型	23
第三節  樣本及資料來源	30
第四節  統計方法	30
第肆章  實證結果分析	32
第一節	敘述性統計及相關性分析	32
第二節	迴歸分析	37
第伍章  結論、限制與建議	45
第一節	研究結論	45
第二節	研究限制與建議	45
參考文獻	46
中文文獻	47
英文文獻	48


圖目錄
圖1- 1研究流程圖	5 
圖3- 1研究架構圖	19 


表目錄
表4- 1樣本產業分佈表	32
表4- 2樣本變數統計量	33
表4- 3 樣本之 VIF 共線性檢定	34
表4- 4各變數間 Pearson 相關係數矩陣	36
表4- 5企業營運績效指標為ROA之迴歸模型	40
表4- 6企業營運績效指標為ROE之迴歸模型	43
表4- 7假說檢定彙整表	44

中文文獻
王玉珍，2002，股權結構、董事會組成、資本結構與企業績效關係之研究，中央大學企業管理研究所碩士論文。
李孟芳，2003，股權結構對企業財務資訊揭露品質之影響─以上市電子公司為例，成功大學會計學研究所碩士論文。
倪衍森，2003，投資理財分析，台北市：華泰文化事業有限公司。
倪衍森、廖容岑，2006，家族企業負債代理成本及鼓勵政策之研究-以台灣上市公司為例，管理與系統，13(2):153-179。
孫嘉欣，2007，從各國公司治理改革趨勢論完善我國公司內部監察體制之改革—以獨立董事、監察人法制之改革為例，台灣大學法律學研究所碩士論文。
高蘭芬，2002，董監事股權質押之代理問題對會計資訊與公司績效之影響，成功大學會計學系博士論文。
郭雅青，2011，國內上市公司管理者過度樂觀之研究─以資本投資決策為例，宜蘭大學應用經濟學系碩士論文。
黃振豊、呂紹強，2000，企業財務危機預警模式之研究-以財務及非財務因素建構，當代會計，第1卷第1期：19-40。
楊之宜，2003，管理者股權結構與公司經營績效，交通大學管理科學研究所博士論文。
熊大中，2000，我國企業財務危機與董監股權質押關連性之研究，成功大學會計學系碩士論文，。
劉玉珍，2003，認知心理學在財務學術的應用」，貨幣觀測與信用評等，第42期: 2-14。
蔡維哲，2012，公司治理機制與企業價值之關聯性研究─以資訊服務產業為例，中山大學企業管理研究所碩士論文。
賴麗玲，2003，錯置效應與過度自信之實證－以高週轉率共同基金經理人之表現為例，實踐大學企業管理研究所碩士論文。


英文文獻
Agrawal, A., and Mandelker, G. N., 1987. Managerial Iincentives and Corporate Iinvestment and Financing Decisions, Journal of Finance, 42: 823-838. 
Amihud, Y., and Lev, B., 1999. Does Corporate Ownership Structure Affect Corporate Dicersification, Strategic Management Journal, 20: 1063-1069.
Barber, M. B., and Odean, T., 2000. Trading is Hazardous to Your Wealth: The common Stock investment Performance of Individual investors, Journal of Finance, 55: 773-806. 
Baysinger, B. D., and Hoskisson, R. E., 1990. The Composition of Boards of Directors and Strategic Control The Academy of Management Review, 15 (1): 72-87.
Baysinger, B., and Hoskisson, R. 1989. Diversification Strategy and RandD Intensity in Multiproduct Firms. Academy of Management Journal, 310-332.
Berle. A., and Means, G. C., 1932. The Modern Corporate and Private Property, New York Macmillan. 
Bhagat, S., and Black, B., 1999. The Uncertain Relationship between Board Composition and firm Performance, Business Lawyer, 54: 921-963.
Brickley, J.A., Lease, R.C. and Smith, C. W., 1988. Ownership Structure and Voting on Antitakeover Amendments, Journal of Financial Economics, 20: 267-291. 
Brown, R., and Sarma, N., 2007. CEO Overconfidence, CEO Dominance and Corporate Acquisitions, Journal of Economics and Business, 59: 358-379 
Campbell, K., and Minguez-Vera, A., 2008. Gender Diversity in The Boardroom and Firm Financial Performance, Journal of Business Ethics, 83: 435-451.
Carter, D., Simkins, B., and Simpson, W., 2003. Corporate Governance, Board Diversity, and Firm Value. The Financial Review, 33-53.
Chen, K. P., 2005. External Recruitment as an Incentive Device. Journal of Labor Economics, 23: 259-277.
Chen, S. S., 2006. The Economic Impact of Corporate Capital Expenditure: Focused Firms Versus Diversified Firms. Journal of Financial and Quantitative Analysis, 41 (2): 341-355. 
Chung, I. Y., Koford, K. J., and Lee, I., 1993. Stock Market Views of Corporate Multinationalism: Some Evidence From Announcements of International Joint Ventures. Quarterly Reviews of Economics and Finance, 33 (3): 275-293. 
Chung, J., and Monroe, G., 2002. The effects of experience and task difficulty on accuracy and confidence assessments of auditors. Accounting and Finance, 40(2): 135-151.
Claessens, S., Djankov, S., and Lang, L. H. P., 2000. The Separation  of Ownership and Control in East Asian Corporation. Journal of Financial Economics, 58(1): 81-112. 
Claessens, S., Djankov, S., Fan, J., and Lang, L. H. P., 2002. Disen-Tangling the Incentive and Entrenchment Effects of Large Shareholdings. Journal of Finance, 57(6): 2741-2772. 
Connors, N., 1989. Outside board members: A breath of fresh air CFO. The Magazine for Chief Financial Officers, 5 (7): 48-52.
Cooper, A. C., Woo, C. Y., and Dunkelberg, W. C., 1988. Entrepreneurs Perceived Chances for Success. Journal of Business Venturing, 3(2): 97-108.
Davis, J., Schoorman, R., and Donaldson, L., 1997. Toward a Stewardship Theory of Management. Academy of Management Review, 22: 20-47.
De Bondt, W., and Thaler, R., 1985. Does The Stock Market Overreact? Journal of Finance, 40: 793-805.
Dechow, P. M., Sloan, R. G., and Sweeny, A. P., 1996. Causes and Consequences of Earnings Manipulation: An Analysis of Firms Subject to Enforcement Actions by the SEC. Contemporary Accounting Research, 13(2): 1-36. 
Delaney, J. T., and Huselid, M. A., 1996. The Impact of Human Resource Management Practices on Perception of Organizational Performance, Academy of Management Journal, 39( 4): 949-969. 
Dess, G. C., and Robinson, R. B. Jr., 1984. Measuring Organizational Performance in the Absence of Objective Measures, Strategic Management Journal, 5( 3): 265-273. 
Ding, D., and Sun, Q., 1997. The Information Content of FDI Announcement: Evidence From an Emerging Market. International Review of Financial Analysis, 6 (1): 63-76. 
Donaldson, T., and Preston, L. E., 1995. The Stakeholder Theory of the Corporation: Concepts, Evidence, and Implications. Academy of Management Review, 20(1): 65-91.
Echevarria, D. P., 1997. Capital Investment and the Profitability of Fortune 500 Industrials: 1971-1990. Studies in Economics and Finance, 18 (1): 3-35.
Elias, A. A., and Cavana, R. Y., 2000. Stakeholder Analysis for Systems Thinking and Modeling, School of Business and Public Management Victoria University of Wellington New Zealand.
Fama, E .F., 1970. Efficient capital markets: a review of theory and empirical work, Jourual of Finance 25: 283-417.
Fama, E. F., 1980. Agency Problems and The Theory of The Firm. Journal of Political Economy, 88(21): 288-307. 
Fama, E. F., and Jensen, M. C., 1983. Separation of Ownership and Control. Journal of Political Economy, 26(2): 301-315. 
Fan, P. H., and Wong, T. J., 2002. Corporate Ownership Structure and The Informativeness of Accounting Earnings in East Asia. Journal of Accounting and Economics, 33(3): 401-425. 
Franks, J., Mayer, C., 2001. Ownership and Control of German Corporations. The Review of Financial Studies, 14(4): 943-977.
Gilson, S.C., 1989. Management Turnover and Financial Distress, Journal of Financial Economics, 25: 241-262.
Gordon, L., and Pound, J., 1993. Information, Ownership Structure, and Shareholder Voting: Evidence From Share-Holder-Sponsored Corporate Governance Proposal. Journal of Finance, 48(2): 697-718. 
Hafsi T., Turgut G., 2012. Boardroom Diversity and Iits Effect on Social Performance: Conceptualization and Empirical Evidence . Journal of Business Ethics, Online First24 avril.
Harding, N., Hughes, S., and Trotman, K., 2005. Auditor calibration in the review process. Advances in Accounting Behavioral Research, 8: 41-57.
Heaton, J. B., 2002, Managerial Optimism and Corporate Finance, Financial Management, 3(1): 33-45
Hu, M., Chen, H., and Shieh, J., 1992. Impact of U.S.-China Joint Ventures on Stockholders' Wealth by Degree of International Involvement. Management International. 
Jackling, B., and Johl, S., 2009. Board Structure and Firm Performance: Evidence From India's Top Companies. Corporate Governance: An International Review, 17(4): 492-509.
Jensen, M. C., 1986. Agency Costs of Free Cash Flow, Corporate Finance and Takeovers, American Economic Review, 323-329. 
Jensen, M. C., and Meckling,W. H., 1976. Theory of the Firm: Managerial Behavior, Agency Cost and Ownership Structure. Journal of Finance Economics, 3: 305-360.
Jensen, M., 1993. The Modern Industrial Revolution, Exit, and The Failure of Internal Control Systems. Journal of Finance, 48(3): 831-880. 
Jensen, M., and Meckling, W. H., 1976. Theory of The Firm: Mana-Gerial Behavior, Agency Costs and Ownership Structure. Jour- Nal of Financial Economics, 3(4): 305-360. 
Jensen, M., and Ruback, R. S., 1983. The Market for Corporate Con- Trol: The Scientific Evidence. Journal of Financial Economics, 11(1-4): 5-50. 
Kahneman and Tverskey 1973, On the psychology of prediction. Psychological review, 80: 237-251.
Kent, P., and Weber, R., 1998. Auditor expertise and the estimation of dollar error in accounts. Abacus, 34(1): 120-139.
Kesner, I. F., 1987. Directors stock ownership and organization performance: An investigation of fortune 500 companies. Journal of Management, 13(3): 499-507. 
Kim, S., 2001. The near-term financial performance of capital expenditures: A managerial perspective. Managerial Finance, 27 (8): 48-62.
Kim, W. S., 2003. Wealth effect of international investments and agency problems for Korean multinational firms. Journal of International Financial Management and Accounting, 14 (3): 194-217.
King, JK., Shivdasani, A., 1995. Firm performance, corporate governance, and top executive turnover in Japan. Journal of Finance Economics, 38(1),29-58.
Kiymaz, H., 2003. Wealth effect for U.S. acquirers from foreign direct investments. Journal of Business Strategies, 20 (1): 7-22. 
Kiymaz, H., and Mukherjee, T. K., 2001. Parameter shifts when measuring wealth effects in cross-border mergers. Global Finance Journal, 12 (2): 249-266. 
La Porta, R., Lopez-de-Silanes, F., Shleifer, A., and Vishny, A., 2002. Investor protection and corporate valuation. Journal of Finance, 57(3): 1147-1170. 
La Porta, R., Lopez-de-Silanes, F., Shleifer, A., and Vishny, R. W., 1999. The quality of government. Journal of Law, Economics and Organization, 15 (1): 222-279. 
Lemmon, M. L., and Lins, K. V., 2003. Ownership structure, corpo-rate governance, and firm value: Evidence from the East Asian financial crisis. Journal of Finance, 58(4): 1445-1468. 
Lin, Y.H., and Hu, SY., and Chen, M.S., 2005. Managerial Optimism and Corporate Investment: Some Empirical Evidence from Taiwan, Pacific-Basin Finance Journal, 13(5):523-546
Lins, K. V., 2003. Equity ownership and firm value in emerging markets. Journal of Financial and Quantitative Analysis, 38(1): 159-185.
Lipton, M., and Lorsch, J. W., 1992, A Modest Proposal for Improved Corporate Governance, Business Lawyer, 48: 59-77. 
Maital, S., Filer R., and Simon, J., 1986. What Do People Bring To The Stock Market (Besides Money)? Handbook of Behavioral Economics-Behavioral Macroeconomics, In B. Gilad and S. Kaish (Eds.).
Malmendier, U., and Tate, G., 2005. CEO overconfident and corporate investment. The Journal of Finance, 15(6): 2661-2700.
Maury, B., 2006. Corporate Performance, Corporate Governance and Top Executive Turnover in Finland, European Financial Management, 12: 221-248.
McConnell, J. J., and H. Servaes, 1990. Additional Evidence on Equity Ownership and Corporate Value, Journal of Financial Economics, 27: 595-612. 
Miller, D. T., and Ross, M., 1975. Self-Serving Biases in Attribution of Causality – Fact or Fiction. Psychological Bulletin, 82(2): 312-225.
Morck, R., A. Shleifer, and Vishny, R. W., 1988. Management Ownership and Market Valuation：An Empirical Analysis. Journal of Financial Economics, 20: 293-315.
Morck, R., and Yeung, B., 1992. Internalization: An event study test. Journal of International Economics, 33 (1): 41-56. 
Myers, Stewart, and Nicholas Majluf, 1984. Corporate Financing And Investment Decisions When Firms Have Information That Investors Do Not Have, Journal of Financial Economics, 13: 187-221. 
Oliver, B. R., 2005, The Impact of Management Confidence on Capital Structure,"Working Paper, Australian National University. 
Oskamp, S., 1965. Overconfidence in Case-Study Judgments. Journal of Consulting Psychology, 29(3): 261-265.
Patton, A., and Baker, J. C., 1987. Why won't directors rock the board? Harvard Business Review, 65: 10-18.
Pearce II. J. A., and Shaker. A. Z., 1992, Board Composition from a Strategic Contingency Perspective, Journal of Management Studies, 29: 411-438.
Peasnell, K. V., Pope, P. F., and Young, S., 2000. Accrual management to meet earnings targets: UK evidence pre- and post-Cadbury. The British Accounting Review, 32(4): 415.
Pfeffer, Jeffrey and Gerald R., Salancik. 1974. Organization Decision Making as a Political Process: The Case of a University Budget. Administrative Science Quarterly, 19: 135-151.
Pound, J., 1988. Proxy contests and the efficiency of shareholder oversight. Journal of Financial Economics, 20 (1/2): 237-265. 
Pound, J., 1988, Proxy Contests and the Efficiency of Shareholder Oversight, Journal of Financial Economics, 20: 237-265. 
Rindova. V. P., 1999, What Corporate Boards Have to Do With Strategy: a Cognitive Perspective, Journal of Management Studies, 36: 953-975.
Rosenstein, S., and Wyatt, J. G., 1990. Outside directors, board independence, and shareholder wealth, Journal of Financial Economics, 26: 175-191.
Shefrin, H., and Statman, M., 1985. The disposition to sell winners too early and ride losers too long: theory and evidence, Journal of Finance, 40: 777-790.
Shleifer, A., and Vishny  R., 1986. Agency Problems and Dividend Policies around the World, Journal of Finance, 55:1-33.  
Shleifer, A., and Vishny, R., 1997. A Survey of Corporate Governance, Journal of Finance, 52(2): 117-142. 
Smith, B.F., and Amoako-Adu, B., 1999. Management Succession and financial performance of family controlled firms. Journal of Corporate Finance, 5: 341-368.
Stein J., 1988. Takeover Threats and Managerial Myopia Journal of Political Economy, 96: 61-80.
Steiner, T., Lorenz, 1996. A reexamination of the relationships between ownership structure, firm diversification, and Tobin's Q, Quarterly Journal of Business and Economics. Lincoln: Autumn, 35(4): 39-48. 
Titman, S., and Wessels, R., 1988. The Determinants of Capital Structure Choice, The Journal of Finance, 43(1): 1-19.
Titman, S., Wei, K. C. J., and Xie, F., 2004. Capital investments and stock returns. Journal of Financial and Quantitative Analysis, 39 (4): 677-700. 
Wagenaar, W. A., and Keren, G. B., 1986. The Seat-Belt Paradox - Effect of Adopted Roles on Information Seeking. Organizational Behavior and Human Decision Processes, 38(1): 1-6.
Wallsten, T. S., Forsyth, B., and Budescu, D. V., 1981. Reliability and Consistency of Imprecise Probability Judgments About Dose-Response Curves. Bulletin of the Psychonomic Society, 18(2): 66-66.
Weinstein, N., 1980, Unrealistic Optimism about Future Life Events, Journal of  Personality and Social Psychology, (39): 806-820.
Williamson, O. E., 1983. Organization form, residual claimants, and corporate control. Journal of Law and Economics, 26 (2): 351-366. 
Williamson, O.E., 1988. Corporate Finance and Corporate Governance, The Journal of Finance, 43(3): 567-597. 
Yeh, Y. H., Lee, T. S., and Woidtke, T., 2001. Family control and corporate governance: Evidence for Taiwan. International Review of Finance, 2(1): 21-48. 
Yermack, D., 1996. Higher market valuation of companies with a small board of directors. Journal of Financial Economics, 40 (2): 185-211. 
Zahra, S. A., and J. A., Pearce, 1989. Board of Directors and Corporate Financial Performance: A Review and Integrative Model, Journal of Management, 15(2): 291-334.