The BIP Trilogy (Bipolarization, Inequality and Polarization): One Saga but Three Different Stories

Joseph Deutsch, Alessio Fusco, Jacques Silber
2013 Economics : the Open-Access, Open-Assessment e-Journal  
Inequality, bi-polarization and polarization are related but distinct concepts aiming at analysing the income distribution. This paper first recalls the main differences between these three notions of inequality, bipolarization and polarization and then suggests using the socalled Shapley decomposition to show that the various income sources have a different impact on these three types of indicators. Our empirical investigation, based on 2008 data for Luxembourg, shows in fact that, in the case
more » ... t that, in the case of the so-called zero income Shapley decomposition, inequality in Luxembourg is strongly related to income from capital while bipolarization is mainly due to the distribution of income from work and polarization to that of the income from work and transfers. JEL I31 D63 D31
doi:10.5018/economics-ejournal.ja.2013-22 fatcat:ecmpuxzsxbav5p4jpvgvnwhcsy