Large firms spawn spin-outs caused by innovations deemed unrelated to the firm's overall business. Small firms generate demand for specialized services that lower entry costs for others. We study the interplay of these two localized externalities and their impact on regional innovation. We...

Major economic transitions, even when they are disruptive, do not occur instantaneously but rather occur over time, as regions within a country change at different rates. Accordingly, these dynamics may be reflected in a geographic lifecycle with different regions characterized by different...