In recent years first world countries like Norway and Sweden have experienced an increase in their inequlity levels, affecting directly their Gini coefficient. You would asky, why these first world countries suffer of an increase on inequality? The answer is simple, in recent years the increase of migration from people of Midle East has increased, in particular from countries like Sriria. Most of these people try to reach countries like the Nordic countries because of their welfare state that benefits the unemployed people and and provides benefits to inmigrants. So in the particular case of the Nordic countries, most of their increase on inequality is beacuse of the increase in migration. However not all the problem is that migrants go to Nordic countries such that the welfare state assits them, but a big problem is that there is by the fact that they are inmigrants, when they try to find jobs must of them reach many difficulties because of the racism against them only because of their nationality. Like in the theory of superstars that because of being the best one you earn the double than the second one even if the first one is only 5% better than the second one, here we can apply the superstar theory by saying that the Nordic people are the superstars and the migrants with, let suppose, the same abilities that them are the second best. Here we can see clearly how the case of inequality in Nordic countries is seen.