In a generalized quality-ladder growth model, this paper firstly derives the optimal patent breadth and the socially optimal profit-sharing arrangement between patentholders. In this general-equilibrium setting, it identifies and derives a dynamic distortion of markup pricing on capital...

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...

This study explores the macroeconomics effects of labor unions in a two-country model of directed technical change in which the market size of each country determines the incentives for innovation. We find that an increase in the bargaining power of a wage-oriented union leads to a decrease in...

How do intellectual property rights that determine the market power of firms influence the effects of monetary policy on economic growth and social welfare? To analyze this question, we develop a monetary R&D-based growth model with elastic labor supply. We find that monetary expansion reduces...

This study analyzes the growth and welfare effects of monetary policy in a two-country Schumpeterian growth model with cash-in-advance constraints on consumption and R&D investment. We find that an increase in the domestic nominal interest rate decreases domestic R&D investment and the growth...

R&D investment has well-known liquidity problems, with potentially important consequences. In this paper, we analyze the effects of monetary policy on economic growth and social welfare in a Schumpeterian model with cash-in-advance (CIA) constraints on consumption, R&D investment, and...

This study analyzes the cross-country effects of monetary policy on innovation and international technology transfer. We consider a scale-invariant North-South quality-ladder model that features innovative R&D in the North and adaptive R&D in the South. To model money demand, we impose...

In this note, we develop a monetary Schumpeterian growth model to explore the effects of monetary policy on endogenous market structure, economic growth and social welfare. We find that an increase in the nominal interest rate reduces the equilibrium number of firms. Although long-run economic...

To analyze the welfare gain from allowing for differentiated patent protection across sectors, this study develops a two-sector quality-ladder growth model in which patent breadth is a policy variable and derives the optimal patent breadth under two policy regimes. We show that (i) the optimal...

A special characteristic of the patent system is that it features multiple patent-policy levers that can be employed by policymakers. In this study, we develop a quality-ladder model to analyze the optimal mix of patent instruments. Specifically, we consider (a) patent breadth and (b) the...