Di Matteo, Massimo; Luini, Luigi - In: Journal of Economic Studies 28 (2001) 4/5, pp. 254-264
Highlights the theory of competition advanced by da Empoli in the late 1920s. The main point is the existence of discontinuities in industrial concerns. This leads to the possibility that prices exceed marginal costs and depend also on ultramarginal costs, a new concept elaborated by da Empoli....
