The authors analyze the optimal replacement of assets under continuous and discontinuoustechnological change. They investigate the variable lifetime of assets in an infinite-horizonreplacement problem. Due to deterioration, the maintenance cost increases when the assetbecomes older. Because of...

This paper analyses price competition under product differentiation when goods are defined ina two dimensional characteristic space, and consumers do not know which firm sells whichquality. Equilibrium prices consist of two additive terms, which balance consumers' relativevaluation of goods'...

This paper investigates the impacts of progressive trade openness, technological externalities,and heterogeneity of individuals on the formation of entrepreneurship in a two-countryoccupation choice model. We show that trade opening gives rise to a non-monotonic processof international...

In a setting of R&D co-opetition we study, by using an all-pay auction approach, howcollaboration affects strategic decisions during a patent contest, and how the latter influences thepossible collaboration network structures the firms can hope to form. The all pay auctionapproach allows us to...

We study a two-stage R&D project with an abandonment option. Two types of uncertaintyinfluence the decision to start R&D. Demand uncertainty is modelled as a lottery between aproportional increase and decrease in demand. Technical uncertainty is modelled as a lotterybetween a decrease and...