We examine the relationship between competition and innovation in an industry where production is polluting and R&D aims to reduce emissions ("green" innovation). We present an n-firm oligopoly where firms compete in quantities and decide their investment in "green" R&D. When environmental...

We examine the impact of an optimal emissions tax on research and development of emission reducing green technology (E-R&D) in the presence of R&D spillovers. We show that the size and effectiveness of the optimal emissions tax depends on the type of the R&D spillover: input or output spillover....

We consider a setting where firms undertake emission-reducing R&D and the regulator, who sets the emission tax, is unable to commit credibly. Firms are subject to research spillovers in emission reduction. We examine two regimes with respect to the organization of R&D: independent R&D and an...