"The international mobility of people and elites is a main feature of the global economy of today and yesterday. Immigration augments the labor force in receiving countries and provides many of the bodies and minds that are essential to any vibrant economy. Talented people are critical to the...

Stable, higher income democracies often have both a strong middle class and relatively low levels of inequality. In contrast, lower and middle income countries with highly unequal patterns of income distribution and stratified social structures often have a weak middle class, more social...