跨國公司與開發中國家官員之賄賂關係被稱為骯髒聯盟。非國家行為者是形塑與改變國際規範之重要參與者，本研究檢視重點在於國際透明組織為切斷骯髒聯盟之供需關係，如何運用其獨特之跨國倡議網絡模式，透過建立聯盟(coalition-building)途徑，促成國際公約並且改變簽署國之國家行為。該非政府組織影響國際關係之具體成果為1997年簽署之OECD反賄公約，該公約是第一個從供應方(supply-side)切斷跨國商業賄賂鏈之國際規範，其立法歷程與會員國之國家偏好改變足以證明國際透明組織之影響力。 主流學派之結構現實主義者主張國際關係是結構決定論，以強權國家為主要的、具決定性之行為者，國家偏好是外生給定的利益排序。本研究主張以建構主義為基礎之全球反貪運動則是反其道而行，國際透明組織建構之跨國倡議網絡，擅用人氣政治與切身性政治，以合作取代對抗，有效促成已開發國家採取集體行動，簽署OECD反賄公約。當強權之間拒絕改變現狀時，非國家行為者之理念說服行動可以逐一改變國家偏好，進而改變國際規範。在倡議國際反貪議題上，國際透明組織的確是國際新規範之催生者。 本文採案例研究，主體為國際透明組織，客體為OECD反賄公約，交叉運用深度訪談與調查式過程追蹤研究，密集而深入取得相關當事人提供之第一手資料，彌補既有文獻靜態分析之不足。 / Non-state actors are essential participants in shaping and changing international norms. There has been a long-standing practice of a tacit “dirty alliance” between multinational corporations and developing countries officials. This research focuses on Transparency International(TI), which seeks to sever the supply and demand chain relationships of the dirty alliance by mobilizing a unique model of transnational advocacy network (TAN), engaging coalition-building, lobbying for a new set of international norms and persuading the changes of signatory states’ behavior. The fruits are the adoption of the 1997 OECD Anti-Bribery Convention, which is the first supply-side norm to cut off transnational business bribery chain. Both the key events of the legislative process and the changes of state preferences among the signatories validify the argument for the TI’s significant influence. Contrary to mainstream international relations theories such as structural realism claiming structural determinism, predominant role of powerful states, and exogenously given nature of state preferences, this research proves constructivism prevails. TI’s TAN model artistically exercises popularity politics as well as proximity politics, advocates cooperation instead of confrontation against bribe-givers and bribe-takers, and effectively persuades developed countries to take collective actions by adopting and ratifying the OECD Anti-Bribery Convention. While powerful states resist changing the status quo, non-state actors indeed demonstrate their capability of persuading states to change their preferences. TI is entitled to be the midwife in formulating new international norms against transnational corruption. This research applies case study methodology, making TI as the subject and the OECD Anti-Bribery Convention as the object. Diligent analysis and interpretations are based on the cross-references of in-depth interviews and investigative process-tracing method to extract the primary data from relevant parties so as to supplement the deficiencies of the available literatures.