This paper argues that the case of product differentiation of concentrated markets (i.e., innovation competition) is one where production per unit of profit of non-financial corporations is lower than in competitive mass production and profit share is not an increasing function of capacity...

We present a unified treatment of optimal trade policy for a small country. The well-known results for duopoly and competitive markets emerge as benchmark cases of our model. In addition, we show that changes in market structure have non-monotonic effects on optimal tariffs. Our results suggest...

In this paper, a theoretical model of the impact of product and process innovations on output, capacity utilization, employment, and prices is developed. The model is estimated with micro-data for West German manufacturing firms from the ifo firm panel. The empirical results reveal that...