TY - JOUR A1 - Esteban, J. A1 - Gradín, C. A1 - Ray, D. T1 - An extension of a measure of polarization with an application to the income distribution of five OECD countries Y1 - 2007 DO - 10.1007/s10888-006-9032-x JF - Journal of Economic Inequalities VL - 5 IS - 1 SP - 1 EP - -19 ER -