Instruments of environmental policies in which a change in technology,
behaviour or products is encouraged through financial incentives (either
subsidies, taxes, price differentiation or market creation).
Source: Environmental Programme for the Danube River Basin G lossary
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Mechanisms that create a market for ecosystem services in order to improve the
efficiency in the way the service is used.
The term is used for mechanisms that create new markets, but also for
[actions] such as taxes, subsidies, or regulations that affect existing markets.