Milanovic explores three dimensions of income inequality. These dimensions are inequality between individuals within a country (chapter 1), between countries (chapter 2), and between individuals regardless of country (chapter 3).  Discuss how inequalities in these 3 dimensions have changed in the last decades and what are the channels through which inequality is likely to hinder economic growth. Are these channels still the same? To write the essay, use at least one vignette from each chapter