“…Therefore, location matters and a regulative approach, which considers the individual location in space, would be more cost-effective and economic efficient (Van der Straeten, Buysse, Nolte, Lauwers, Claeys & Van Huylenbroeck 2011). A tradeable concentration permit system or a phosphorus tax system, which theoretically will provide an economic efficient outcome, is difficult to administer in situations, in which the marginal damage and marginal benefits differ significantly in space and time (Goetz & Zilberman 2000, Van der Straeten et al 2011. A system of spatial limitations, like zoning, can be additionally introduced, which, determines the level of allowed phosphorus concentration in the case of the permit trading system or the level of the tax in case of a price regulation system locally.…”