de Guzman, P.University of the Philippines-Los BañosOrprecio, Jim L.Rola, Agnes C.Deutsch, William G.Coxhead, IanSumbalan, Antonio2016-04-192016-04-192002Development Research News 20(2): 70115-9097http://hdl.handle.net/10919/65517Metadata only recordCharging polluters according to the concentration of pollutants that they discharge is an effective way to minimize water and air pollution. This is the rationale of the " polluters pay" principle.text/plainen-USEnvironmental impactsLaws and regulationsPollution controlEconomic impactsConservation incentivesWatershed managementAbatement costsEconomic incentivesLaguna lake development authority (llda)The PhilippinesGovernance WatershedAbstract