Innovation is important for firm performance and broader economic growth. But breakthrough innovations necessarily … effect on the rate of breakthrough innovation and the profitability of firms …

This paper studies a simple model of experimentation and innovation. Our analysis suggests that patents may improve the … project to implement. A successful innovation can be copied by other firms. Symmetric equilibria (where actions do not depend … equilibria). In contrast to patents, subsidies to experimentation, research, or innovation cannot typically achieve this …

Existing theories and empirical research on how innovation occurs largely assume that innovativeness is an inherent … differently than those who do self-select into innovating. To test these questions, we designed and implemented an innovation …

-by-step innovation. Innovations result from costly R&D investments and move technology up one step. Competition is inversely measured by …-and-neck. All these results are consistent with the predictions of step-by-step innovation models …

have a fixed end time. A natural experiment is available because the auctions on Amazon, while operating under otherwise …

In this paper, we exploit a 'natural experiment' associated with human reproduction to identify the effect of teen … with which to contrast teenage mothers. Exploiting this natural experiment, we devise an Instrumental Variables (IV …