Inequality bands: seventy-five years of measuring income inequality in Latin America / Facundo Alvaredo (PSE-WIL, LSE-III, and IIEP-UBA), François Bourguignon (Paris School of Economics, University of New York and IZA), Francisco Ferreira (London School of Economics and IZA), Nora Lustig (Tulane University) ; IZA Institute of Labor Economics