junior segment of the London Stock Exchange (LSE), by means of dynamic panel data models, where entry at the sectoral level …

We analyze the effect of patent thickets on entry into technology areas by firms in the UK. We present a model that … opportunity. Technological areas characterized by more technological complexity and opportunity, in contrast, see more entry. Our … evidence indicates that patent thickets raise entry costs, which leads to less entry into technologies regardless of a firm …