Fritsch, Michael; Stephan, Andreas - Fakultät Wirtschaftswissenschaften, Technische … - 2004
We introduce a new two-dimensional measure for the heterogeneity of performance within groups of economic units. This … the new measure leads to a much more differentiated description of heterogeneity than alternative measures, for example …, the mean or range. In particular, we provide an example to demonstrate that the proposed measure of heterogeneity is …