為了共同面對來自中國大陸廠商的價格競爭壓力，台灣自行車業的兩大領導廠商──巨大與美利達，以朝向高值化的共同目標籌組了競爭者間的合作體系。然而，競爭者雙方以合作為前提下，競合關係下的動態性以及廠商間的競爭性行動呈現何種面貌？又，如何應用策略矩陣分析法更細緻地分析，在競合關係中廠商間的競爭行為？ 本研究結合動態競爭的對偶層次分析及策略矩陣分析法，以策略點為分析基礎，更細緻地展開處於合作情境下的兩家競爭廠商，如何在歐洲自行車市場佈局競爭性行動。根據結構內容分析兩家廠商2006至2016 年間的新聞事件後發現，在合作的前提下，兩家廠商分別在競爭性行動的時間軸、地理涵蓋範圍、價值單元以及策略點皆進行具差異性的佈局，呈現多樣化的競爭內涵。 本研究除擴展競合情境下的動態競爭研究外，亦藉由策略矩陣分析法豐富化廠商間可分析的競爭行為，並探討資源條件不同的廠商間，其競爭行為如何佈局的實質細節。本研究對於廠商如何在競合關係中發起競爭性行動，提供了實務性的指引與參考。 / To present a united front against the stress of price-cutting competition from Mainland China, Taiwan’s two leaders in the bicycle industry, Giant and Merida, established an inter-firm cooperation system between competitors in order to achieve the common goal of delivering high-valued product. However, under the premise of cooperation agreement between two competing leaders, what is the dynamicity in co-opetition and the inter-firm competitive action under the real scenario? And, how can we apply the strategic matrix analysis to inter-firm rivalry on competitive behvior involved in co-opetition relationship? This study combines dyadic analysis from competitive dynamics with strategic matrix analysis to investigate the two research questions addressed above. By using the “strategic point” as the analytical basis, this study examines two competing leaders under cooperation agreement and extracts their competitive actions in European bicycle market with structured content analysis. Building on the results from the analysis of the news between 2006 and 2016, two competing leaders separately differentiate and conduct their competitive action deployments on four dimensions, which are time-axis, geographical coverage, value unit, and strategic point. Therefore, this study reveals the various contents of two competing leaders in the cooperation-competition. More than contributing to the research field of competitive dynamics in co-opetition, this study enriches the analyzability of inter-firm competitive behaviors by conducting strategic matrix analysis. It provides the details about how the firms compete with each other with different resource endowments. This study broadens our view of the competitive dynamics in co-opetition and introduces practical guidelines on initiating competitive action to the firms in co-opetition relationship.