On the Link Between the Concepts of Kurtosis and Bipolarization Jacques SILBER Bar-Ilan University Joseph Deutsch Meital Hanoka Bar-Ilan University Bar-Ilan University (Ph.D. student) Abstract In a paper on the measurement of the flatness of an income distribution Berrebi and Silber (1989) showed how it was possible to derive from the Gini index a measure of the degree of Kurtosis of a distribution whose definition made it quite similar to the more famous Pearson measure of Kurtosis. This note shows that it is possible to derive from the index of flatness proposed by Berrebi and Silber (1989) a measure of bipolarization that has all the important properties one would like a bipolarization index to have. This paper was written while Jacques Silber was visiting the Laboratorio Riccardo Revelli at the Collegio Carlo Alberto, in Moncalieri, Italy. He is very thankful to the Laboratorio and in particular to its director, Bruno Contini, for their very warm hospitality. Citation: SILBER, Jacques, Joseph Deutsch, and Meital Hanoka, (2007) "On the Link Between the Concepts of Kurtosis and Bipolarization." Economics Bulletin, Vol. 4, No. 36 pp. 1-5 Submitted: September 5, 2007. Accepted: October 2, 2007. URL: http://economicsbulletin.vanderbilt.edu/2007/volume4/EB-07D30002A.pdf