Technological progress is typically a result of trial-and-error research by competing firms. While some research paths lead to the innovation sought, others result in dead ends. Because firms benefit from their competitors working in the wrong direction, they do not reveal their dead-end...

Technological progress is typically a result of trial-and-error research by competing firms. While some research paths lead to the innovation sought, others result in dead ends. Because firms benefit from their competitors working in the wrong direction, they do not reveal their dead-end...

The paper analyses the role of capital structure of firm on industry dynamics. Empirical evidence shows that policy interventions can alter for some the frims�cost of the capital. As a result firms on average are overcapitalized with a low capital productivity. Moreover, the market in which...

This paper analyzes innovation races in a moral hazard setting. I develop a model where two competing entrepreneurs, financed by a single venture capitalist, work independently on the same project. The venture capitalist cannot observe the allocation of funds she provides, which creates a moral...

We study a stochastic dynamic game of process innovation in which firms can initiate and terminate R&D efforts and production at different times. We discern the impact of knowledge spillovers on the investments in existing markets, as well as on the likely structure of newly forming markets, for...

Consider a dynamic intra-industry trade model with two goods, two firms, and two countries in which product ¡°reliability¡± is determined by R&D paths. This paper focuses on how a change in competitive conditions in terms of manufacturing costs affects the firms¡¯ decision about optimal...

Sunk costs for R&D are an important determinant of the level of innovation in the economy. In this paper I recover them using a Markov equilibrium framework. The contribution is twofold. First, a model of industry dynamics which accounts for selection into R&D, capital accumulation and...

We develop a multi-sector general equilibrium model in which productivity growth is driven by the production of sector-specific knowledge. In the model, we find that long run differences in total factor productivity growth across sectors are independent of the parameters of the knowledge...

This paper argues that drugs are expensive not because of a lack of competition among research-based pharmaceutical companies, but because of a lack of competition in the drug approval process. Lack of competition in the drug approval process has led to exceedingly high drug development costs....

We develop a multi-sector general equilibrium model in which productivity growth is driven by the production of sector-specific knowledge. In the model, we find that long run differences in total factor productivity growth across sectors are independent of the parameters of the knowledge...