We examine how requiring platforms to give rivals resources, such as data, affects innovation. Using simulations in which an initial firm obtains a head start on rivals and uses that head start to build a valuable resource that subsequently gives it a competitive advantage over rivals when...

We study the impact of platform choice (iOS vs Android) for firms that build apps for smart phones. We merge app data from Sensor Tower® with financial performance data from Crunchbase®. We find that apps that begin on Android have greater average downloads per month. However, apps with the...

This paper investigates the relationship between innovation activities and market structure in German chemical industry. We present a formal model that suggests the existence of a self-enforcing dynamic feedback between market concentration and innovation. This model is tested on the basis of...

Recent empirical studies find vast industry differences in how patent protection influences innovation and growth. An optimization of aggregate growth, therefore, implies the need for a flexible patent regime responding to each industry's characteristics. In practice, sector-specific...

This paper provides a theory of strategic innovation project choice by incumbents and start-ups. We apply this theory to identify the effects of prohibiting start-up acquisitions. We differentiate between killer acquisitions (when the incumbent does not commercialize the acquired start-up's...

This paper investigates the impact of technical progress on the relationship between competition an investment. Using a model of oligopoly competition with differentiated products where firms invest to reduce their marginal cost of production, I find that technical progress, which increases the...