Entrepreneurship, as reflected in industry turnover rates, is a central force behind output and productivity growth. However, cross country comparisons suggest that turnover rates are remarkably independent of barriers to business: Singapore, one of the most entry-friendly countries in the...

We provide a simple framework to analyze the effect of firm dominance on incentives for R&D. An increase in firm dominance, which we measure by a premium in consumer valuation, increases the dominant firm's incentives and decreases the rival firm's incentives for R&D. These changes influence the...