So it follows that it makes both political and economic sense to implement the 'polluter pays principle': MSWM is provided as a public utility service and paid for by the public, and (larger) private waste generators manage their own waste or pay for its proper management. Selling recovered products is also a substantial industrial sector in its own right. The dependence of the waste industry on legislation to create the market has also created a 'shadow business’ which cuts costs by ignoring the law.