This paper develops an R&D-growth model and calibrates the model to aggregate data of the US economy to quantify a structural relationship between patent length, R&D and consumption. Under parameter values that match the empirical flow-profit depreciation rate of patents and other key features...

Is the patent length an effective policy instrument in stimulating R&D? This paper develops a generalized variety-expanding growth model and then calibrates the model to the aggregate data of the US economy to analyze the effects of extending the patent length. The numerical exercise suggests...

Since the 80’s, the pharmaceutical industry has benefited substantially from a series of policy changes that have strengthened the patent protection for brand-name drugs as a result of the industry’s political influence. This paper incorporates special interest politics into a quality-ladder...

Patenting and licensing are introduced into the lab-equipment horizontal innovation model of endogenous growth. Patent length is not deterministic, in that patent holders' market power will collapse if and only if their patented goods get successfully imitated. The model is solved in an exact...

With sound framework conditions, fine universities, good infrastructure and policies friendly towards foreign direct investment, Ireland scores high in international innovation scoreboards. Overall, policies to boost innovation and entrepreneurship are on the right track, but investment in...

This paper studies how the strength of intellectual property rights (IPRs) affects investments in biological innovations when the value of an innovation is stochastically reduced to zero because of the evolution of pest resistance. We frame the problem as a research and development (R&D)...

Numerous studies predict that developing countries with low human capital may not benefit from the strengthening of intellectual property rights. The authors extend an influential theoretical framework to highlight the role of intellectual property rights in the process of innovation and...

It has been commonly argued that the decision of a large number of inventors to license complementary patents necessary for the development of a product leads to excessively large royalties. This well-known Cournot-complements or royalty-stacking effect would hurt efficiency and downstream...

This chapter summarizes the basic characteristics of patent data as an innovation indicator and reviews some of the recent research using patent data, focusing on major developments since Griliches in 1990 [Griliches, Z. (1990). “Patent statistics as economic indicators: A survey”. Journal...