近年來，由於環境快速變遷與市場競爭激烈，使得合資聯盟成為企業取得競爭優 勢一項重要的策略。本文認為當聯盟成立時，其形成條件 (formation conditions) 對於聯 盟的績效影響甚大，因此，本文以聯盟形成之初始條件，包括以往合資經驗、協商時間與計 畫周詳度、協商主管層級、母公司規模相對大小、股權結構與文化差異等因素來說明其對於 聯盟績效之影響，並且認為他們是透過信任、承諾與透明度三個行為因素來影響聯盟績效。 本文認為良好的形成條件對於聯盟的績效有正面的影響，但是，當聯盟的形成條件並不是那 麼有利時，則經理人應注意如何透過其他形成因素或是在日後聯盟運作時，以增進彼此間的 信任、承諾與透明度來彌補成立時不利之條件。

　　　　　Recently, international joint venture (IJV), because of rapid environmental change and intense international competition, becomes an important strategy for firms to gain competitive advantage. From literature review and real case studies, this article discusses the effects of formation conditions on performance of IJV. these formation conditions, including cooperative experience with incumbent partner, negotiation period and comprehensiveness of planning, level of managers in charge of negotiation, relative size of parent companies, share structure, and cultural differences, can affect IJV performance through following intervening behavioral factors: trust, commitment, and transparency. This article holds that sound formation conditions could contribute positively to the performance of IJV. However, while some formation conditions are unsound, managers should try to enhance mutual confidence, commitment and transparency by the arrangement of other formation conditions or the implementation of IJV to make up the deficient formation conditions.