This paper shows that the possibility of licensing can significantly alter theeffects of entry on social welfare. We find that while licensing with output royaltyalways raises welfare due to entry, licensing with up-front fixed-fee reduces thepossibility of lower welfare compared to a situation...

Noncooperative games in which each player’s payo¤ function depends on anadditively separable function of every player’s choice variable may be transformedinto an aggregative game, which may be analysed using the conceptof ‘share functions’. The resulting approach avoids the...

This note develops a method of recovering individual preferences, and of obtaining money-metricindividual welfare comparisons, from demand functions generated by Cournot-Nash equilibria ingames with public goods.