This paper develops a two-dimensional spatial framework to explore the firms' optimal locations and optimal attributes of basic products under linear transportation costs, in which firms have the technique of flexible manufacturing and engage in spatially discriminatory pricing. We can observe...

This comment indicates that the derivation of the fixed fee for licensing both firms in Kabiraj (The Manchester School, Vol. 72 (2004), pp. 188–205) uses a different definition from that in Kamien and Tauman (Quarterly Journal of Economics, Vol. 101 (1986), pp. 471–491) and Kamien et al....