Terry Anderson and Donald Leal think that all recycling programmes should be privately operated, and therefore would only operate if the money saved by recycling exceeds its costs.
特里·安德森（Terry L. Anderson）和唐纳德·李尔（Donald Leal）认为所有的回收项目应该交由个体运作，这样只有当回收剩下的钱超过成本时才值得去做。