This paper investigates the effect of different patent regimes on R&D investment and social welfare in a duopoly market with uncertain R&D process. We find that strong patent protection increases R&D investment of at least one firm but whether both firms’ R&D investment will be more under...

We show that if patent protection and trade secrecy generate asymmetricmarket structure, an innovator may prefer patent protection than trade secrecy even ifthe diffusion probability is higher under the former but it increases marketconcentration by preventing some imitators...

We show the effect of patent protection on R&D investment in presence of‘inventing around’ (or imitation) and technology licensing...

This paper investigates the effect of different patent regimes on R&D investment and social welfare in a duopoly market with uncertain R&D process. We find that strong patent protection increases R&D investment of at least one firm but whether both firms? R&D investment will be more under strong...

We show that, in the case of a vertical technology transfer, if there is imperfect knowledge spillover under a weak patent protection, the strong patent protection in the developing country increases the profit of the developed-country firm if there is a uniform tax rate in the developing...