innovation can be systematically distorted. This paper builds a simple model of endogenous technology, which generalizes existing … comparative static results and characterizes potential distortions in the direction of innovation. I show that empirical findings …

We study the relationships between corporate R&D and three components of public science: knowledge, human capital, and … established firms, which account for more than three-quarters of business R&D, is affected by scientific knowledge produced by … innovation in firms. However, inventions from universities and public research institutes substitute for corporate inventions and …

We study the global innovation and diffusion of ideas by introducing trade into the model in Eaton and Kortum (1999 … intensity of innovation within countries over time and diffusion rates across countries. We find significant specialization … across the globe: some countries have high innovation rates, while other countries rely on diffusion. Although innovation is …

Innovation depends on exporting and, in particular, on scale and competition in export markets. We develop a theory … featuring (1) quality-segmented markets, (2) step-by-step innovation that moves firms forward along the quality ladder, and (3 …) escape-the-competition motives for innovation. We derive four predictions about the impact on innovation of scale and …

externalities but also by innovation market failures. This paper maps the economics literature on innovation market failures and …

Investments in the US Science, Technology, Engineering, Medicine and Innovation (STEMI) enterprise come from many … innovative than government or business funding alone would yield. It also enables significant innovation in the development of …