that these two types of externalities co-exist, but differ in their spatial distribution and attenuation within cities …-city industry cluster in a diversified, large city appears to let firms enjoy the benefits of local industry-specific externalities …

accounts for technological interdependence among countries through spatial externalities. The original version models …

continuous curves. Our rich panel data allows us to address spatial sorting of workers and the entanglement of spillover and …

same workplace, even if the workers carry out completely independent tasks and do not engage in team work? This may well be …