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研究生:鍾杰紘
研究生(外文):CHIEH-HUNG CHUNG
論文名稱:員工認股權與公司風險的關係
論文名稱(外文):The Relationship between Employee Stock Options and Company Risks
指導教授:林修葳林修葳引用關係
口試委員:羅懷均吳瑞萱
口試日期:2015-05-31
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:國際企業學研究所
學門:商業及管理學門
學類:企業管理學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:英文
論文頁數:64
中文關鍵詞:員工認股權限制性股票公司風險非系統性風險
外文關鍵詞:Employee stock optionsrestricted stockcompany riskunsystematic riskbeta
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由於員工認股權漸漸成為公司發放員工獎勵的首選工具之一,越來越多研究者投入研究相關議題,但主要的議題方向仍著重於研究員工認股權定價相關、如何在財報上表達其對公司成本、抑或是持有者的交割時點選擇等議題,鮮少關於員工認股權與公司風險相關的議題,也因此本論文將探討員工認股權與公司風險的關係。透過迴歸測試以及統計分析得到員工認股權的發放與公司風險間有統計上顯著的正向關係,也因此推得有發放員工認股權公司會傾向於承擔更高的風險;另外,此正向關係也在限制性股票與公司風險間關係的檢測中得到證實。較值得注意的是此篇論文研究員工認股權與公司非系統性風險的關係,這樣的關係檢測是目前沒有被任何相關的研究報告探討或是證實的,而此篇研究證實公司非系統性風險與員工認股權的發放有正向關係,連高風險的公司也有這樣的情況,故推斷公司認為其股東已作多元投資,願多承受投資人不要求補貼的非系統性風險。

Employee stock options have already become one of the popular tools for companies to grant their employees as compensations, thereby attracting more and more research papers examining on it. However, most of the extant papers focus on the valuation and exercise-decision of the employee stock option. This thesis turns to the company’s risk with the association of the employee stock options. The results show that there exists a significantly positive relationship between the company risk and the employee stock options, which leads to the interpretation that the companies tend to take greater risk since the increase of company risks helps increasing the value of the options. The tests are also applied to those of restricted stocks, which posses same characteristics as those of employee stock options. The tests also indicate that there is positive relationship between restricted stocks and company risk. Furthermore, this thesis analyzes the relationship of employee stock options with unsystematic risks, which offer no compensations to undertakers. The empirical results indicate that there is statistically significantly positive relationship between either the numbers or values of employee stock options and the unsystematic risk of the company, leading to the interpretation that the company undertakes more unsystematic risk, consistent with the notion that stockholders will conduct self-diversification to their investments.

ACKNOWLEDGEMENT I
ABSTRACT II
中文摘要 III
LIST OF FIGURE IV
LIST OF TABLES V
CHAPTER 1 INTRODUCTION 1
1.1 SETTING THE GROUND 1
1.2 MOTIVATION AND CONTRIBUTION 2
1.3 TARGETS AND DATA SCOPE 5
1.4 STRUCTURE OF THIS THESIS 7
CHAPTER 2 BACKGROUND AND LITERATURE REVIEW 8
CHAPTER 3 METHODOLOGY 12
3.1 RESEARCH STRUCTURE 12
3.2 MODEL FOR REGRESSIONS AND STATISTICAL TESTING 20
3.3 DESCRIPTIVE STATISTICS 33
CHAPTER 4 RESULTS AND DATA ANALYSIS 34
CHAPTER 5 CONCLUSION 48
REFERENCE 51
TABLES 54


[1]. Aboody, D., (1996). “Market valuation of employee stock options”, Journal of Accounting and Economics, 22, 357-391.
[2]. Agrawal, A., and Mandelker, G. N., (1987). “Managerial incentives and corporate investment and financing decision”, Journal of Finance, 42, 823-837.
[3]. Antle, R., and Smith, A., (1986). “An empirical investigation of the relative performance evaluation of corporate executives”, Journal of Accounting Research, 24, 1-39.
[4]. Bettis, J. C., Bizjak, J. M., and Lemmon, M. L., (2005). “Exercise behavior, valuation, and the incentive effects of employee stock options”, Journal of Financial Economics, 76, 445-470.
[5]. Carpenter, J. N., (1998). “The exercise and valuation of executive stock options”, Journal of Financial Economics, 48, 127-158.
[6]. Carpenter, J. N., (2000). “Does option compensation increase managerial risk appetite”, Journal of Finance, 55, 2311-2332.
[7]. Chen, C. R., Steiner, T. L., and Whyte, A. M., (2006). “Does stock option-based executive compensation induce risk-taking? An analysis of the banking industry”, Journal of Banking & Finance, 30, 915-945.
[8]. Core, J., and Guay, W., (2002). “Estimating the value of employee stock option portfolios and their sensitivities to price and volatility”, Journal of Accounting Research, 40, 613-630.
[9]. Foster, T. W., Koogler, P. R., and Vickrey, D., (1991). “Valuation of excecutive stock options and the FASB proposal”, The Accouting Review, 66, 595-610.
[10].Huddart, S., (1994). “Employee stock options”, Journal of Accounting and Economics, 18, 207-231.
[11].Huddart, S., and Lang, M., (1996). “Employee stock option exercises an empirical analysis”, Journal of Accounting and Economics, 21, 5-43.
[12].Rajgopal, S., and Shevlin, T., (2001). “Empirical evidence on the relation between stock option compensation and risk taking”, working paper.
[13].Smith, C. W., and Zimmerman, J. L., (1976). “Valuing employee stock option plans using option pricing models”, Journal of Accounting Research, 14, 357-346.
[14].Yermack, D., (1997). “Good timing: CEO stock option awards and company news announcements”, Journal of Finance, 52, 449-476.

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