abandonment of economic theory in applied work in the “experimentalist paradigm.” We document the changes implied by the changing …-55, 1974-75 and 2007-08. We also show that, despite the partial abandonment of theory by applied microeconomists, the labor …

) model, this suggests that there are knowledge spillovers from the network. In some other nations, invention quality is less …

knowledge is an input into internal invention, and thus, more valuable to firms with inventive capability. Using a simple model …

scientific knowledge to technological fields, we confirm reliance on science increases the likelihood that the invention will be …

At least since Arrow (1962), the effects of appropriability on invention have been well studied, but there has been … terminate or commercialize the invention is driven by the current market value of the invention, as well as the option value of …

evaluate which type of work is more likely to spur further invention. When recent advances create superior opportunities for … invention, their adoption as research inputs in the invention process promotes technological progress. The gains from pursuing … determine idea inputs in invention based on the text of nearly every US patent granted during 1836–2010. We find that inventions …

a key empirical prediction of this theory: that inventions in large cities build on newer ideas than inventions in …