collaborate in R&D is increasing in R&D productivity. The key findings of the theoretical model are tested using German innovation … survey data for the service sector. A simultaneous model for cooperation choice and innovation expenditures shows that R …&D cooperation has a weakly significant positive effect on innovation expenditures. The empirical results broadly support the …

collaborate in R&D is increasing in R&D productivity. The key findings of the theoretical model are tested using German innovation … survey data for the service sector. A simultaneous model for cooperation choice and innovation expenditures shows that R …&D cooperation has a weakly significant positive effect on innovation expenditures. The empirical results broadly support the …

R&D cooperation only considered process innovation, the model presented here also takes product innovation into account …. It is shown that the optimal R&D investment has virtually the same structure for both process and product innovation. The …

specification. This is due to the fact that business and innovation survey data usually lack information on labor cost. This paper … information on total labor cost and firms' skill mix only. The simple method proposed here is applied to German innovation survey …

This paper derives a three stage Cournot-oligopoly game for product innovation, expenditure on introducing the product … and competition on the product market. Product innovation is assumed to increase consumer utility but is effective only if … decide whether or not to conduct product innovation and then determine their expenditure for bringing the new product to the …