Schumpeterian competition.
Joseph A. Schumpeter (1883-1950), author of Capitalism, Socialism, and Democracy (1942) 
wThe “Schumpeterian hypothesis.”
wDo big firms (or firms with market power?) innovate more than small firms?
wA relatively confused and arid debate.
wEmpirical evidence:  oligopolies are more innovative than either perfect competitors or monopolists.
wDo firms innovate well because they are big – or do they get big because they innovate well?