Children may not yet understand political issues or be engaged in politics, but identification with social groups emerges early; indeed, nearly a third of first-graders report identification with a political party. As a result, it is likely that ingroup favoritism (or preference for members of one's own political group) and outgroup derogation (or…

The economic factor is considered primary in temporary labor migrations: when people can find jobs in a country where the standard of living is higher, they are able to earn more money than they would in their home country. In the recent years, differences in pay have been so large that by earning a lot of money in a different country and spending…