Gerlagh, Reyer; Kverndokk, Snorre; Rosendahl, Knut Einar - 2008
policy. With infinite patent lifetime, the R&D subsidy should be constant and independent of the state of the environment … 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 …