In the text-book model of dynamic Bertrand competition, competing firms meet the same demand function every period. This is not a satisfactory model of the demand side if consumers can make intertemporal substitution between periods. Each period then leaves some residual demand to future...

We present a continuous-time generalization of the seminal R&D model of d’Aspremont and Jacquemin (American Economic Review, Vol. 78, No. 5) to examine the trade-off between the benefits of allowing firms to cooperate in R&D and the corresponding increased potential for product market...

We present a continuous-time generalization of the seminal R&D model of d’Aspremont and Jacquemin ('American Economic Review', 1988) to examine the trade-off between the benefits of allowing firms to cooperate in R&D and the corresponding increased potential for product market collusion. We...

We study a stochastic dynamic game of process innovation in which firms can initiate and terminate R&D efforts and production at different times. We discern the impact of knowledge spillovers on the investments in existing markets, as well as on the likely structure of newly forming markets, for...

In a continuous-time model with uncertain market development, two potential entrants detect a nascent demand only if it reaches a firm-specific threshold. Entry occurs by investing irreversibly before competing in quantities. When leadership in the investment stage implies a first-mover...

We present a continuous-time generalization of the seminal R&D model of d'Aspremont and Jacquemin (The American Economic Review 78(5): 1133–1137, 1988) to examine the trade-off between the benefits of allowing firms to cooperate in R&D and the corresponding increased potential for product...

This paper investigates the impact of technical progress on the relationship between competition an investment. The competition is measured as the degree of substitutability and technical progress enlarges the size of innovation in cost reduction. In a context of duopoly, technical progress...

This paper presents an empirical test of the anticompetitive effects of joint ownership, by examining the operation of three nuclear plants in Sweden. Since maintenance is the main conduit explaining the variation in output, I formulate a model of intertemporal choice in which firms choose how...