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Choi, Jay Pil; Gerlach, Heiko A. - 2015

This paper develops a model of patent trolls to understand various litigation strategies employed by nonpracticing entities (NPE). We show that when a NPE faces multiple potential infringers who use related technologies, it can gain a credible threat to litigate even when it has no such...

Persistent link: https://www.econbiz.de/10011344729

Patent pools, litigation and innovation

Choi, Jay Pil; Gerlach, Heiko A. - 2013

This paper analyzes patent pools and their effects on innovation incentives. It is shown that the pro …-competitive effects of patent pools for complementary patents naturally extend for dynamic innovation incentives. However, this simple … patents reduce social welfare as they charge higher licensing fees and chill subsequent innovation incentives. …

Persistent link: https://www.econbiz.de/10010199442

FRAND royalties and injunctions for standard essential patents

Choi, Jay Pil - 2014

I develop a stylized model of court procedures that resolve disputes concerning FRAND-encumbered standard essential patents (SEPs). I analyze the effects of injunctions and potential court-imposed FRAND rates on negotiated royalty rates. The SEP-holders' ability to hold-up is constrained by the...

Persistent link: https://www.econbiz.de/10010418280

Asymmetric neutrality regulation and innovation at the edges : fixed vs. mobile networks

Choi, Jay Pil; Jeon, Doh-Shin; Kim, Byung-Cheol - 2014

We study how net neutrality regulations affect a high-bandwidth content provider's (CP) investment incentives in quality of services (QoS). We find that the effects crucially depend on network capacity levels. With limited capacity, as in mobile networks, prioritized delivery services are...

Persistent link: https://www.econbiz.de/10010412363

A theory of patent portfolios

Choi, Jay Pil; Gerlach, Heiko A. - 2013

This paper develops a theory of patent portfolios in which firms accumulate an enormous amount of related patents in diverse technology fields such that it becomes impractical to develop a new product that with certainty does not inadvertently infringe on other firms ́patent portfolios. We...

Persistent link: https://www.econbiz.de/10010189838

Sequential innovation, naked exclusion, and upfront lump-sum payments

Choi, Jay Pil; Stefanadis, Christodoulos - 2017

We present a potentially benign naked exclusion mechanism that can be applied to sequential innovation; a non …-patentable original innovation by the incumbent supplier fosters derivative innovation by rivals. In the absence of an appropriate legal … innovator. The former ban precludes the exclusion of socially beneficial derivative innovation by causing the incumbent supplier …

Persistent link: https://www.econbiz.de/10011637645