Why do firms tend to locate near other firms? Economists suspect that geographic clustering spurs innovation by letting businesses tap a climate rich in informal transfers of knowledge. By tracing links between inventors filing for patents for the same inventions, Jeffrey Lin shares new evidence...

REVISED 9/2019: We show evidence of localized knowledge spillovers using a new database of multiple invention from U.S. patent interferences terminated between 1998 and 2014. Patent interferences resulted when two or more independent parties simultaneously submitted identical claims of invention...

Where does adaptation to innovation take place? The supply of educated workers and local industry structure matter for the subsequent location of new work - that is, new types of labor-market activities that closely follow innovation. Using census 2000 microdata, the author shows that regions...