Branko Milanović is a Yugoslav economist. He is a Serbian citizen. Lead economist in the World Bank's research department, a development specialist, he is a visiting professor at Johns Hopkins University. Between 2003 and 2005 he was Senior Associate at Carnegie Endowment for International Peace in Washington. He remained an adjunct scholar with the Endowment until early 2010. 
Throughout his career he has done a number of publications, including some 40 papers for the World Bank. mainly on world inequality and poverty. He is the author of the first work assessing global income inequality between individuals ("Economic Journal", January 2002). His 2005 book ("Worlds Apart") about global income disparity; introduced three concepts of international inequality: unweighted inequality between mean country incomes, population-weighted inequality between mean country incomes, and global income inequality between all individuals in the world. He defined inequality possibility frontier in a 2006 paper on inequality in Byzantium ("Review of Income and Wealth", 2006). The concept, later expanded to 29 pre-industrial economies in a joint work with Jeffrey Williamson and Peter Lindert ("Economic Journal", March 2011), was considered by The Economist to "contain the germ of an important advance in thinking about inequality".  Milanovic is the author of 2011's The Haves and the Have-Nots, a book of essays on income distribution;The Globalist selected The Haves and the Have-Nots as number one on its "top books of 2011". Writing for the Roubini Global Economics, Jaime Pozuelo-Monfort characterized him as " one of the leading experts in income inequality". Milanović currently serves on the advisory board for Academics Stand Against Poverty (ASAP).