Barriers to entry are regarded as major impediments to the working of markets. Entry must not necessarily actually take place - the perceived threat of entry may encourage incumbent firms to behave as if they are in a competitive market, even if they are not. We present empirical evidence on...

This article examines a sample of German pharmaceutical firms to highlight the strategic reasons why firms participate in various intellectual property (IP) marketplaces, both proprietary (patents and copyrights) and non-proprietary (open source and non-patented technology). The obstacles that...