We show the effects of Bertrand and Cournot competition on R&D investmentand social welfare in a duopoly with R&D competition where success in R&D isprobabilistic. We show that R&D investments are higher under Bertrand (Cournot)competition when R&D productivities are sufficiently low (high), and...

This paper compares Bertrand and Cournot equilibria in a horizontallydifferentiated duopoly market with non-tournament R&D competition. We consider thatsuccess in R&D is uncertain. We show that whether firms invest more under Cournotcompetition or Bertrand competition is ambiguous and depends on...

This paper shows that although small or nancially constrained environmentalistgroups may be in a weak position, relative to polluting industries, in the directcompetition for political inuence, they can compete indirectly through changingpublic preferences over environmental quality. However, in...