This paper develops a framework to appreciate the observed heterogeneity of firm size distributions and the entry and … pattern (varieties and markets) of existing firms in combination with entry/exit of firms. The empirical results are …

We build a model of firm-level innovation, productivity growth and reallocation featuring endogenous entry and exit. A … provides a good fit to the dynamics of firm entry and exit, output and R&D, and its implied elasticities are in the ballpark of ….5% because it deters entry of new high-type firms. On the contrary, substantial improvements (of the order of 5% improvement in …

in a duopoly that product characteristics will be efficient. Entry of a third firm will be more profitable in the fringes …. Furthermore entry results in too much variety. Finally, the paper presents a novel argument in favour of bundling. …

entrants make it easier to enter markets? We estimate the empirical relationship between market entry and patents for 27 … of entry by 3%-8%, and this relationship intensified following expansions in the patentability of software in the mid …, patents appear to substitute for complementary assets in the entry process, because patents have both greater entry …

We build a model of firm-level innovation, productivity growth and reallocation featuring endogenous entry and exit. A … provides a good fit to the dynamics of firm entry and exit, output and R&D, and its implied elasticities are in the ballpark of ….53 because it deters entry of new high-type firms. On the contrary, substantial improvements (of the order of 53 improvement in …

This paper analyzes the optimal entry into experience goods markets with vertically differentiated buyers. We consider … aggressively. The slow entry strategy is associated with increasing supply and decreasing prices over time. The reverse pattern … holds for an aggressive entry strategy The incentives to innovate display a similar distinction. A firm with a currently …