What (if anything) is wrong with inequality?

Descripton  Globalization in the long run
Globalization and migration
Globalization and the gains from trade among nations
trade between countries
Migration: Globalization of labour
Inequality across the world and over time
What (if anything) is wrong with inequality?
How much inequality is too much (or too little)?
inequality
Predistribution
Redistribution: Taxes and transfers
recent trends in inequality in market income
Equality and economic performance