A refinement of the entropy measure of firm diversification: Toward definitional and computational accuracy
改进了企业多元化的熵测度，使其更精确地反映多元化在行业间的分布程度和行业数量，帮助理解不同多元化模式的企业之间的等价性。
The entropy measure of firm diversification is refined to improve its precision. The concept of diversification is defined and the measure is modified to reflect its dimensions—the extent of diversification across segments (distribution) and the number of segments in which a firm operates. The refined measure makes it possible to better understand equivalences among firms with different diversification profiles.