Graduation Year

Spring 2012

Document Type

Open Access Senior Thesis

Degree Name

Bachelor of Arts



Reader 1

Darren Filson

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Creative Commons Attribution-Noncommercial-Share Alike 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

Rights Information

© 2012 Xiaotong Li


Patent trolls have changed the innovation and patent policy landscape. This thesis is an empirical event study that focuses on two landmark cases of patent troll litigation, RIM v. NTP and eBay v. Mercexchange, to determine whether pro-troll litigation outcomes significantly impact the market values of the firms in the high-tech industries they target. I find that the Supreme Court ruling in eBay v. Mercexchange did seem to significantly impact a proportion of firms in the market. The decisive factors in distinguishing affected vs. unaffected firms include a firm's R&D to Sales ratio, market value, and NAICS code specification.

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