Often, an unequal flow of currency reduces the supply of money in the nation and can lead to an increase in the exchange rate relative to the dollar, leading to inflation and, in a worst case, labor market pressures leading to unemployment.
Diplomacy arises out of the fundamental character of the nation-state system, with its basic assumption that nation-states are autonomous, often divergent in their interests and unequal in their power.
Yet amid this success stands a cruel irony: too many American schools are still separate and unequal, with black and Latino students often stuck in rotten, overcrowded, underfunded classrooms.