玩《大富翁》的时候,把你所有的钱都用来购买、交换或交易橙色物业。不用管那些公共设施。
经济研究应旨在为现实世界的决策提供信息。
Remember, if you ever need a helping hand, it's at the end of your arm, as you get older, remember you have another hand: The first is to help yourself, the second is to help others.