How does firm entry affect innovation incentives and productivity growth in incumbent firms? Micro-data suggests that … there is heterogeneity across industries - incumbents in technologically advanced industries react positively to entry, but … not in laggard industries. To explain this pattern, we introduce entry into a Schumpeterian growth model with multiple …

In industries with network effects, incumbents’ installed bases create barriers to entry that discourage entrepreneurs … from developing new innovations. Yet, entry is not the only commercialization route for entrepreneurs. We show that the … necessarily restrict innovation incentives. We also show that network effects promote acquisitions over entry and that the …

entry and financial development. Incumbents seek a low level of effective investor protection to prevent potential entrants … higher rents earned with less competition. Entry and investor protection improve when wealth distribution becomes less … countries we find that greater accountability is associated with higher entry in sectors that are more dependent on external …