Valuation of nature (biodiversity: BD) and in particular ecosystem services (ESS) are important prerequisites for the design of cultural landscapes as well as in agricultural policy and the generation of BD as public interest. Designs should be built on valuation and valuation is usually seen as market assignment of prices. Yet, there is a problem with market failure. BD and ESS can be characterized as public goods, both being non-rival and non-exclusive, thus demanding public provision. Largely due to public pressure, nature provision and planning has received increased attention.