title: Cross-achievements between policies for drinking water protection.
abstract: Environmental dynamics have important spatial dimensions, which calls for a spatial approach in policy analyses. Further to this, assessing agri-environmental policies involves analyses of individual measures as well as their combined effects on farmer behaviour and the environment. The integration of an economic behavioural model in a spatial framework has enabled analyses of a geographically targeted subsidy scheme for drinking water protection in combination with a uniform tax on commercial nitrogen fertilizer. Results show that policy measures for reducing nitrogen use can have combined effects (cross-achievements), thereby affecting each other's cost-effectiveness. Cross-achievements between a nitrogen fertilizer tax and a subsidy scheme based on elicitation are shown not to be additive, making partial analyses of policy measures more uncertain.
authors.affiliation: hlr24@cornell.edu
authors.forename: Hild
authors.initials: H
authors.lastname: Rygnestad
authors.forename: Jørgen Dejgaard
authors.initials: JD
authors.lastname: Jensen
authors.forename: Tommy
authors.initials: T
authors.lastname: Dalgaard
authors.forename: Jesper S
authors.initials: JS
authors.lastname: Schou
mesh_terms: D000383:Agriculture; D003362:Cost-Benefit Analysis; D004777:Environment; D004784:Environmental Monitoring; D005308:Fertilizers; D005843:Geography / Q000706:statistics & numerical data; D007256:Information Systems; D009584:Nitrogen / Q000032:analysis; D013660:Taxes; D014876:Water Pollution / Q000191:economics / Q000517:prevention & control*; D014881:Water Supply
chemical_list: D005308:Fertilizers; D009584:Nitrogen