In economics, a public good refers to a commodity or service that is made available to all members of a society.

在经济学中，公共产品是指向社会所有成员提供的商品或服务。

Examples of public goods include law enforcement, national defense, and the rule of law. Public goods also refer to basic goods, such as access to clean air and drinking water.

公共产品包括执法、国防和法治，它也指基本商品，例如能获得清洁的空气和饮水。

来源：同文世纪翻译，转载请注明出处！