As opposed to being the study of scarce resources, economics is the science of sustaining human livelihood. Money is a medium of exchange. Finance enables corporations and governments to pay for operations that they currently cannot afford. The federal reserve sets monetary policy by influencing inflation and unemployment.
NATO is first and foremost a military alliance based upon mutual defense. Immigration provides for the introduction of new human capital into the economic system and the societal benefit exceeds what the immigrant receives in compensation.
