子公司已成為多國籍企業內重要的優勢來源，同時母公司的角色對於子公司亦具有影響力。本研究提出子公司的影響力不僅來自於子公司內部鑲嵌程度的影響，亦來自於母公司角色與行為的影響；而理性與全然不確定性觀點則是用來說明母公司角色的重要性。本研究分析173間企業在臺子公司，結果發現子公司內部鑲嵌對子公司影響力有正向的影響。就母公司角度來看，若是加入子公司角色共同進行分析，母公司參與則會產生負向的調節效果。整體而言，本研究證明子公司內部鑲嵌的重要性，更解釋母公司角色對子公司具有影響性。

The subsidiary has been the source of competitive advantage within MNE. The headquarters’ (HQ) role also has the effect on the subsidiary influence. Besides the internal embeddedness for subsidiary, two perspectives “rationality” and “radical uncertainty” are proposed to the role of HQ in the MNE. By analyzing 173 subsidiaries in Taiwan, we find that the subsidiary’s internal embeddedness has a positive effect on subsidiary influence. More specifically, we check the direct and moderating impact of HQ involvement on the subsidiary influence. The finding shows that HQ involvement negatively moderates the relationship between subsidiary’s internal embeddedness and influence. This study contributes to better understanding the relationship between HQ and subsidiaries in the contemporary MNE.