Convergence across alternative methods for forming strategic groups
研究了三种识别战略群体方法（档案数据、感知数据、直接测量）的收敛性，发现档案与感知数据、档案与直接测量方法的结果显著收敛，支持战略群体是理论构念而非方法假象。
We studied the convergence of three different methods for identifying group structure (strategic groups) in a single competitive environment. Using a version of the MTMM matrix, we tested the convergent validity of the concept of strategic groups in a mature, geographically delimited competitive environment. We find significant evidence of convergence between competitive structures identified using archival and perceptual data as well as those identified using archival measures of strategy and direct measures of competitors. There is limited evidence of convergence between competitive structures identified from perceptual and direct measures. Taken as a whole, these results are consistent with the emerging theory of strategic groups. We conclude that strategic groups are a theoretical construct and not a methodological artifact, as is suggested by some authors. © 1997 John Wiley & Sons, Ltd.