一、《社区再投资法》公共物品之一:使用支付系统根据《社区再投资法》的属性,我认为可以从三个方面判断其为公共物品。第一,也是最重要的一个方面,是向全体公民提供支付服务。现在该服务有三种形式:现金、支票和电子形式,更典型的是“塑料币”。公共物 I. The Community Reinvestment Law One of the Public Goods: Using the Payment System According to the attributes of the Community Reinvestment Law, I think it can be judged as public goods from three aspects. The first and most important aspect is the provision of payment services to all citizens. The service is now available in three forms: cash, check and electronic, more typically “plastic coin.” Public goods