本論文建立在一個異質商品價格競爭的模型下，探討買家和現任獨佔廠商簽訂排他性契約後，對自身是否有保障、對社會福利的影響及是否具有阻礙進入的反效果，並進一步分析存在金融投資者的情況下，排他性契約是否會影響金融市場的發展。

我們發現排他性契約不一定會形成進入障礙，也有可能促進進入，須視生產者的生產成本而定。在存在金融投資者的情形下，簽訂排他性契約，會使金融避險市場無法成形；而只允許簽訂遠期契約時，金融市場則得以發展。因此，每種契約都有其利弊，不應一味的禁止某種契約。排他性契約當具有正當理由，且經主管機關許可時，排他性契約也不失是一種規避價格風險的方法。

A price competition model with heterogeneous commodities is established in this research to discuss effects including buyer's risk-sharing,social welfare and entry barriers after buyer and incumbent signing an exclusivity contract. Moreover, assuming that there are financial investors,we analyze the impacts of signing the exclusivity contract on the financial market.

After signing the exclusivity contract, our results indicate that , with different costs of production, both restricting and ecouraging entry are possible,
and the financial market is unable to develop even when the potential financial investors are available. However, the financial market can be established if we only allow the buyer to sign forward contract with the incumbent for price risk-sharing reason.
Hence, every contract has its advantages and disadvantages, we should choose the appropriate one depending on different circumstances.

 目錄“
論文審定書 i
謝辭 iii
摘要 iv
Abstract v
目錄 vi
表次 viii
1 緒論 1
1.1 研究動機與目的............................. 1
1.2 研究流程與架構............................. 2
2 文獻回顧 3
3 經濟模型 5
3.1 模型設定....................................... 5
3.2 建立賽局....................................... 6
3.3 效率.............................................. 10
4 不存在金融投資者 12
4.1 沒有契約(No Contract).....................12
4.2 排他性契約(Exclusivity Contract)......13
4.3 遠期契約(Financial Contract)............19
4.4 小結................................................20
5 存在金融投資者 22
5.1 沒有契約(No Contract).....................22
5.2 排他性契約(Exclusivity Contract)......23
5.3 遠期契約(Financial Contract)............28
5.4 小結................................................29
6 結論 31
參考文獻 32

中文部分
1.「平交易法條」。公平交易委員會網站。 2015年3月12日，取自:http://www.ftc.gov.tw/internet/main/doc/docDetail.aspx?uid=132&docid=167
2. 莊春發(1999)，獨家交易反托拉斯管制之研究，<<公平交易季刊>>第七卷,第2期, pp.1-60 。
3. 楊永明(1987)，排他性契約，國立台灣大學法律研究所碩士論文。
英文部分
1. Aghion, P. and Bolton, P. 1987. Contracts as a Barrier to Entry.American Economic Review 77: 388-401.
2. Argenton, C. and Willems, B. 2012. Exclusivity Contracts, Insurance and Financial Market Foreclosure . The Journal of Industrial Economics 60： 609-630.
3. Bernheim, B.D. and Whinston, M.D. 1998. Exclusive Dealing. Journal of Political Economy 106: 64-103.
4. Kipnis, D. 1976. The Powerholders. University of Chicago Press, Inc.
5. Marvel, H. 1982. Exclusive Dealing. Journal of Law and Economics 25: 1-25.
6. Wilkinson, I. and Kipnis, D. 1978, Interfirm Use of Power. Journal of Applied Psychology 63: 315-320.