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Title:Linking environmental and innovation policy PDF Logo
Authors:Gerlagh, Reyer
Kverndokk, Snorre
Rosendahl, Knut Einar
Issue Date:2008
Series/Report no.:Nota di lavoro // Fondazione Eni Enrico Mattei: Sustainable development 53.2008
Abstract:This paper addresses the timing and interdependence between innovation and environmental policy in a model of research and development (R&D). On a first-best path the environmental tax is set at the Pigouvian level, independent of innovation policy. With infinite patent lifetime, the R&D subsidy should be constant and independent of the state of the environment. However, with finite patent lifetime, optimal innovation policy depends on the stage of the environmental problem. In the early stages of an environmental problem, abatement research should be subsidized at a high level and this subsidy should fall monotonically over time to stimulate initial R&D investments. Alternatively, with a constant R&D subsidy, patents' length should initially have a very long life-time but this should be gradually shortened. In a second-best situation with no deployment subsidy for abatement equipment, we find that the environmental tax should be high compared to the Pigouvian levels when an abatement industry is developing, but the relative difference falls over time. That is, environmental policies will be accelerated compared to first-best.
Subjects:Environmental Policy
Research and Development
Innovation Subsidies
Patents
JEL:H21
O30
Q42
Document Type:Working Paper
Appears in Collections:FEEM Working Papers, Fondazione Eni Enrico Mattei

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