過去高層理論的研究主要在探討高階管理團隊特性對於績效及策略選擇之影響，而對於策略選擇的探討上大都以策略內容的角度來進行，例如多角化策略的程度，創新策略的程度等，從策略學習的角度進行探討就比較少見。本研究希望在高層理論的架構上，以策略學習的角度來探討策略相似性在高階管理特性對績效影響的關係中可能扮演的中介角色。以台灣經濟新報資料庫，2011年的33家台灣商業銀行作為分析樣本。實證結果顯示，策略相似性在規模影響績效的關係中，扮演完全中介的角色，在平均教育程度影響績效的關係中則扮演部分中介的角色。此實證結果在實務與理論上皆有其重要的意涵。

Upper echelon theory mainly explores the relationship between top management team characteristics and both strategic choice and firm performance. However, the relationship between the strategic choice and firm performance is not explored much yet. The purpose of this study is to test the p ossible mediating e.ffects of strategic conf ormity on the relationship between top management team characteristics andfirm performance. This research is trying to explain the impact of strategic conformity on firm performance through the behavioral theory of the firm, and to explore the possible mediating effect of strategic conformity f urthermore. Based on the 33 commercial banks collectedfrom Taiwan Economic Journal (TEl) database between 2010 and 2011, the empirical results show that strategic conf ormity has the complete intervening e_ffect on the relationship between top management team size and firm performance, and partial intervening e.ffect on the relationship between top management team education and firm performance. This empirical result has important implications for both academia and practice.