本研究檢驗了客戶集中度在公司成本結構決策上的效果，利用迴歸分析台灣所有上市櫃公司，在2005年至2015年間的成本資料，結果發現客戶集中度與成本彈性之間具有負向關聯，也就是變動成本相對固定成本的比例，在高度客戶集中的公司中有較低的傾向。此外，研究中也加入了額外控制變數的考量，確保結果的穩健性，研究結果顯示，供應商對客戶集中度的態度，大多為追求增加共同依賴以及顧客間合作往來，而非因為考量到相關風險而企圖減少在供應商與顧客關係間權力的不平衡。

This study examines the effects of customer concentration levels on firm cost structure decisions. Analyzing cost data from a sample of all listed companies from 2005 through 2015, we find a negative relationship between customer concentration and cost elasticity whereby firms exhibit lower proportions of variable-to fixed costs in the presence of higher levels of customer concentration.
These results are robust to alternate specifications as well as controlling for additional variables. Our results suggest that suppliers respond to customer concentration by pursuing increased mutual dependence and cooperation with customers rather than attempting to reduce the effect of power imbalances within the supplier-customer relationship.

摘要 I
誌謝 V
內文目錄 VI
表目錄 VII
第一章 緒論 1
第一節 研究背景及動機 1
第二節 研究目的 2
第二章 文獻探討與假說建立 3
第一節 文獻探討 3
第二節 假說建立 10
第三章 研究設計 12
第一節 樣本選取 12
第二節 模型與變數設計 15
第四章 實證結果 18
第一節 敘述性統計與相關數據 18
第二節 迴歸結果 22
第五章 穩健性測試與額外分析 25
第一節 穩健性測試 25
第二節 額外分析 28
第六章 結論與建議 30
第一節 研究結論 30
第二節 研究建議 30
參考文獻 32
附錄 36

Anderson, M. C., R. D. Banker, and S. N. Janakiraman. , 2003. Are Selling, General, and Administrative Costs “Sticky? Journal of Accounting Research 41 (1): 47-63.
Balakrishnan, R., T. J. Linsmeier, and M. Venkatachalam., 1996. Financial Benefits from JIT Adoption: Effects of Customer Concentration and Cost Structure. The Accounting
Review 71(2): 183-205.
Balakrishnan, R., and T. S. Gruca., 2008. Cost Stickiness and Core Competency: A Note. Contemporary Accounting Research 25 (4): 993-1006.
Bae, K., and J. Wang., 2010. Why Do Firms in Customer-Supplier Relationships Hold More Cash? Working paper, York University.
Banker, R. D., and L. Chen. , 2006. Predicting Earnings Using a Model Based on Cost Variability and Cost Stickiness. The Accounting Review 81 (2): 285-307.
Banker, R. D., M. Ciftci, and R. Mashruwala., 2008. Managerial Optimism, Prior-Period Sales Changes, and Sticky Cost Behavior. Working Paper, Temple University
Banker, R. D., D. Byzalov, and J. M. Plehn-Dujowich., 2011. Sticky Cost Behavior: Theory and Evidence. Working Paper. AAA Annual Meeting, August 6-10, Denver, Colorado.
Banerjee, S., Dasgupta, S., Kim, Y., 2008. Buyer–Supplier Relationships and The Stakeholder Theory oStructure. Journal of Finance 63, 2507–2552.
Benjamin K, Robert G. Crawford and Armen A. Alchian. , 1978. Vertical Integration- Appropriable Rents, and the Competitive Contracting Process.
Casciaro, T., and M. J. Piskorski., 2005. Working Paper, Florida Atlantic University. Power Imbalance, Mutual Dependence, and Constraint Absorption: A Closer Look at
Resource Dependence Theory. Administrative Science Quarterly 50(2): 167-199.
Cen, L., Dasgupta, S., Sen, R., 2013. Discipline or Disruption? Stakeholder Relationships and The Effect of Takeover Threat. Working Paper. Hong Kong University of Science and Technology
Cooper, R. W., and J. Haltiwanger., 2006. On the Nature of Capital Adjustment Costs. The Review of Economic Studies 73 (3): 611-633.
David M. Harrison,Christine A. Panasian, Michael J. Seiler, 2011. Further Evidence on The Capital Structure of REITs, Real Estate Economics 39, 133-166.
Dou, Y., O. Hope, and W. B. Thomas., 2013.Relationship-Specificity, Contract Enforceability, and Income Smoothing. The Accounting Review 88(5): 1629-1656.
Ella M.M, and Jason. D. S., 2015. Sources of Customer-Base Concentration and Supplier Performance. Working Paper, University of Wisconsin – Madison and Georgetown
University.
Galbraith, C. S., and C. H. Stiles., 1984.Merger Strategies as a Response to Bilateral Market Power. Academy of Management Journal 27(3): 511-524.
Garrison, R., E. Noreen, and P. Brewer., 2011. Managerial Accounting. 14th edition.
Gosman, M. L., and M. J. Kohlbeck., 2009. Effects of the Existence and Identity of Major Customers on Supplier Profitability: Is Wal-Mart Different? Journal of Management Accounting Research 21: 179-201.
Gosman, M., T. Kelly, P. Olsson, and T. Warfield., 2004. The Profitability and Pricing of Major Customers. Review of Accounting Studies 9 (1): 117–139.
Gourio, F., and A. K. Kashyap., 2007. Investment spikes: New Facts and a General Equilibrium Exploration. Journal of Monetary Economics 54(S1): 1-22.
Hall. Gulati, R., and M. Sytch., 2007.Dependence Asymmetry and Joint Dependence In Interorganizational Relationships: Effects of Embeddedness on a Manufacturer’s Performance in Procurement Relationships. Administrative Science Quarterly 52(1): 32- 69.
Hennessy, C. A., and D. Livdan. 2009. Debt, Bargaining, and Credibility in Firm-Supplier Relationships. Journal of Financial Economics 93(3): 382-399.
Hertzel, M.G., Li, Z., Officer, M., Rodgers, K., 2008. Inter-Firm Linkages and the Wealth　Effects Of Financial Distress along the Supply Chain. Journal of Financial Economics 87,374–387.
Holzhacker, M., R. Krishnan, and M. D. Mahlendorf., 2014. The Impact of Changes in Regulation on Cost Behavior. Contemporary Accounting Research (Forthcoming).
Hsihui C, Curtis M.H, Michael P., 2015. Customer Concentration and Cost Structure, School of Hotel Administration Collection: Working Papers.
Jackson, S. E., ＆ Schuler, R. S., 1985. Revisited: A Meta-Analysis of the Relationships Between Role Ambiguity, Role Conflict, and Job Performance.
Jaramillo, F., F. Schiantarelli, and A. Sembenelli., 1993. Are Adjustment Costs for Labor Asymmetric? An Econometric Test on Panel Data for Italy. Review of Economics and Statistics 75 (4): 640-648.
Kahl, M., Jason L, and Mathias N., 2011. Operating Leverage and Corporate Financial Policies, Working paper, University of Colorado at Bouler. Kallapur, S., and L. Eldenburg., 2005. Uncertainty, Real Options, and Cost Behavior: Evidence from Washington State Hospitals. Journal of Accounting Research 43: 735-752.
Kalwani, M.U., Narayandas, N., 1995. Long-Term Manufacturer-Supplier Relationships:Do They Pay Off for Supplier Firms? Journal of Marketing 59, 1–16.
Kolay, M., Lemmon, M., Tashjian, E., 2015. Distress-Related Spillover Effects in the Supply Chain: Information Revelation or Real Economic Cost? Working Paper. University of Utah.
Lev, B., 1974. On The Association Between Operating Leverage and Risk. Journal of Financial and Quantitative Analysis 9(4): 627-641.
Lisa K. M, 2002. A Senior Manager’s Guide to Integrated Risk Management, Journal of Applied Corporate Finance 14, 56-70.
Murillo, C and Janet, K., 2015. Customer Concentration and Loan Contract Terms. Working paper, Cornell University.
Novy-Marx, R. 2011. Operating leverage. Review of Finance 15(1): 103-134.
Oliver E. Williamson. , 1979.Transaction-Cost Economics: The Governance of Contractual Relations, Journal of Law and Economics, Vol. 22, No. 2 , p. 233-261 Oct.
Patatoukas, P. N. Customer-Base Concentration., 2012. Implications for Firm Performance and Capital Markets. The Accounting Review 87(2): 363-392.
Pfeffer, J., and G. R. Salancik., 1978. The External Control of Organizations: A Resource Dependence Perspective.
Pfeffer, J., 1994. Competitive Advantage Through People. California Management Review 36 (2): 9-28.
Rajiv D. Banker, Dmitri Byzalov, Mustafa Ciftci, and Raj Mashruwala. , 2014. The Moderating Effect of Prior Sales Changes on Asymmetric Cost Behavior. Journal of Management Accounting Research: Fall 2014, Vol. 26, No. 2, pp. 221-242.
Raman, K., and H. Shahrur., 2008. Relationship-Specific Investments and Earnings Management: Evidence on Corporate Suppliers and Customers. The Accounting 　Review 83(4): 1041- 1081.
Ramji, B., Eva L., Naomi S.S, 2014. Cost Structure and Sticky Costs Journal of Management Accounting Research American Accounting Association Vol. 26, No. 2 DOI: 10.2308 / jmar-50831, p. 91-116
Scherer, F. M., 1970. Industrial Market Structure and Economic Performance.
Schloetzer, J. D., 2012. Process Integration and Information Sharing in Supply Chains. The Accounting Review 87(3): 1005-1032.
Snyder, C. M., 1998. Why Do Larger Buyers Pay Lower Prices? Intense Supplier Competition. Economics Letters 58(2): 205-209.
Steven H Lustgarten. , 1975. The Impact of Buyer Concentration in Manufacturing Industries. The Review of Economics and Statistics, Vol. 57, issue 2, pages125-32
Stickney, C. P., and P. Brown., 1999. Financial Reporting and Statement Analysis: A Strategic Perspective (4th ed.).
Orlando, FL: Dryden Subramaniam, C., and M. L. Weidenmier., 2003. Additional Evidence on the Sticky Behavior of Costs. Working Paper, Texas Christian University.
Titman, S. and Wessels R., 1988. The Determinants of Capital Structure Choice. Journal of Finance 43, 1–19.
Winter, S. G., and G. Szulanski., 2001. Replication as Strategy. Organization Science 12(6): 730- 743.
白几芸、葉子明., 2012.供應鏈中影響客戶依賴與顧客承諾因素之研究經濟管理叢論 Vol.8, No.1 , p.21-p.39.
林有志、傅鍾仁、陳筱平, 2011. 成本僵固性之實證研究. Journal of Contemporary Accounting Vol. 12 No. 2, November 2011, P. 191-220.
陳建中, 2016. 銷管費用僵固性、帝國建立動機與公司治理個別機制之成效；Journal of Contemporary Accounting. Vol. 17 No.2, November 2016. PP.131-171.
曾聯洲 , 2003. 銷管費用僵固性之研究，國立政治大學會計研究所未出版碩士論文