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...

We consider the effects of product market cooperation on R&Dinvestment, profits, consumer surplus and welfare. We show that though R&Dinvestment, consumer surplus and social welfare may be higher or lower underproduct market cooperation than product market competition, industry profit isalways...

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...

In a successive Cournot oligopoly, we show the welfare effects of entry inthe final goods market with no scale economies but with cost difference between thefirms. If the input market is very concentrated, entry in the final goods market alwaysincreases welfare. If the input market is moderately...

Armchair evidence shows that many industries are made of a few big commercial ormanufacturing firms, which are able to affect the market outcome, and of a myriad of smallfamily-run businesses with very few employees, each of which has a negligible impact on themarket. Examples can be found in...