A Modified Diversity Index and its Application to Crop Diversity in Assam, India

A new measure of diversification index is proposed taking the correlation structures of the shares into consideration. This index is a generalization of the Herfindahl-Hirschman Index (HHI) proposed in the context of concentration in industries. When this index is applied in the crop production along with other related data in Assam, India, it is seen that many of the interrelations are changed from that of found by HHI. The analysis helps us to plan for improvement of crop patterns in a region prudently