Where are the ultimate sources of technological breakthroughs? What makes a firm more likely to invent a breakthrough or to exploit external breakthroughs? We develop an evolutionary model of invention as a process of recombinant variation and selection. Our contributions are to highlight the...

We investigate the competitive consequence of vertical integration on organizational performance using a comprehensive dataset of U.S. motion picture production companies, which includes information on their vertical scope and competitive overlaps. Vertical integration appears to change the...