European countries have the world's most redistributive tax and transfer systems. While they have been well equipped to deal with vertical inequality - that is, fostering redistribution from the rich to the poor - less is known about their performance in dealing with horizontal inequality, that...

Over the past 20 years, aggregate measures of global inequality have changed little even if significant structural changes have been observed. High growth rates of China and India lifted millions out of poverty, while the stagnation in many African countries caused them to fall behind. Using the...