J Ind Econ 39(4):383–390Įswaran M, Gallini N (1996) Patent policy and direction of technological change. Q J Econ 67(1):1–29Ĭremer H, Thisse JF (1991) Location models of horizontal differentiation: a special case of vertical differentiation models. 2007,001, SFB 649, Economic Risk, Berlin, pp 1–20Ĭhamberlin EH (1953) The product as an economic variable. Rand J Econ 31(3):549–69īraun S (2007) Trade liberalisation, process and product innovation, and relative skill demand, SFB 649 discussion paper, No. Int J Ind Organ 16:495–510īoone J (2000) The effects on investments in product and process innovation. Econ Notes 15:68–91īonanno G, Haworth B (1988) Intensity of competition and the choice between product and process innovation. Empir Econ 44(1):329–354īonanno G (1986) Vertical differentiation with cournot competition. Jpn Econ Rev 55:175–200īecker SO, Egger PH (2013) Endogenous product versus process innovation and a firm’s propensity to export. Int Game Theory Rev 13(2):209–221īandyopadhyay S, Acharyya R (2004) Process and product innovation: complementarity in a vertically differentiated monopoly with discrete consumers types. Rand J Econ 26:557–74īacchiega E, Lambertini L, Mantovani A (2011) Process and product innovation in a vertically differentiated industry. Athey S, Schmutzler A (1995) Product and process flexibility in an innovative environment.