Corporate economic performance: Diversification strategy versus market structure
研究了多元化战略和市场结构对企业经济绩效的影响，发现绩效差异部分源于市场结构变量，而非仅由多元化战略决定。
Abstract This paper incorporates both diversification strategy and market structure variables in a study of corporate economic performance. A subsample of 128 firms from Rumelt's 1974 study was updated and utilized to investigate the possibility that market structure variables might moderate or confound the diversification/performance relationship he reported. Study results indicate that performance differences could be demonstrated for some of Rumelt's categories, but, across the range of categories, a hypothesis of performance differences was rejected. As expected, categories associated with distinctly high or distinctly low economic performance were also associated with significant differences in a series of market structure variables.