In the past, non-practicing entities (NPEs) — firms that license patents without producing goods — have facilitated technology markets and increased rents for small inventors. Is this also true for today’s NPEs? Or are they “patent trolls” who opportunistically litigate over software...

This paper provides the first look at patent litigation hazards for public firms during the 80s and 90s. Consistent with our model, litigation is more likely when prospective defendants spend more on R&D, when prospective plaintiffs acquire more patents and when firms are larger and...

In the last several years, business leaders, policymakers, and inventors have complained to the media and to Congress that today’s patent system stifles innovation instead of fostering it. But like the infamous patent on the peanut butter and jelly sandwich, much of the cited evidence about...

Do patents provide critical incentives to encourage investment in innovation? Or, instead, do patents impose legal risks and burdens on innovators that discourage innovation, as some critics now claim? This paper reviews empirical economic evidence on how well patents perform as a property system.

This paper estimates the total cost of patent litigation to alleged infringers. We use a large sample of stock market event studies around the date of lawsuit filings for US public firms from 1984-99. We find that the total costs of litigation are much greater than legal fees and costs are large...

Do patents behave substantially like property rights in tangible assets, in that they encourage development and innovation? This article notes that historical evidence, cross-country evidence, economic experiments, and estimates of net benefits all indicate that general property rights...

We study a model in which a potential bidder in a government procurement may challenge its exclusion from the procurement before a quasi-judicial board. In the case of a sole-source procurement, the excluded vendor does not know whether the decision was justified in terms of expected surplus or,...

This comprehensive book provides an extensive overview of the major topics of antitrust law from an economic perspective. Its in-depth treatment and analysis of both the law and economics of antitrust is presented via a collection of interconnected original essays. The contributing authors are...