Ｎ·格里高利·曼昆是美国哈佛大学的教授，著名的经济学家。他提出的经济学十大原理颇受经济学界的推崇。曼昆认为，经济只不过是一个在生活中相互交易的一群人而已，经济学是研究社会如何管理自己的稀缺资源。经济学家研究人们如何作出决策，如何相互交易，分析影响整个经济 N. Gregory Mancun is a professor and famous economist at Harvard University in the United States. He put forward the ten principles of economics are highly respected by economists. Mankun believes that the economy is nothing but a group of people who trade each other in their lives, economics is to study how society manages its own scarce resources. Economists study how people make decisions, trade with each other, analyze how the economy affects the entire economy