The link between resources and type of diversification: Theory and evidence
从理论和实证上研究企业利用过剩生产资源进行多元化的现象，发现不同类型的资源（如物质、知识、财务资源）会导致相关或不相关多元化。
Abstract In this paper we theoretically and empirically investigate the idea that firms diversify in part to utilize productive resources which are surplus to current operations. Knowledge of these resources allows us to make predictions about the direction of a firm's expansion. In particular, we suggest that excess physical resources, most knowledge‐based resources, and external financial resources are associated with more related diversification, while internal financial resources are associated with more unrelated diversification.