The renewal of patents and their geographical scope for protection constitute two essential dimensions in a patent’s life, and probably the most frequently used patent value indicators. The intertwining of these dimensions (the geographical scope of protection may vary over time) makes their...

By many objective measures the lives of women in the United States have improved over the past 35 years, yet we show that measures of subjective well-being indicate that women’s happiness has declined both absolutely and relative to men. The paradox of women’s declining relative well-being...

Although they would yield social benefits, some political projects may not be implemented in democracies. Prominent examples are the reform of European labour markets, the reduction of government debt or the reduction of greenhouse gases. We suggest introducing political contracts to make...

Legal institutions are critical for the development of market-based economies. This paper defines legal institutions and discusses different indicators to measure their quality and efficiency. It surveys a large historical and empirical literature showing the importance of legal institutions in...

Progress in closing differences in many objective outcomes for blacks relative to whites has slowed, and even worsened, over the past three decades. However, over this period the racial gap in well-being has shrunk. In the early 1970s data revealed much lower levels of subjective well-being...

This paper analyzes how private decisions and public policies are shaped by personal and societal preferences (values), material or other explicit incentives (laws) and social sanctions or rewards (norms). It first examines how honor, stigma and social norms arise from individuals’ behaviors...

We study how the market for innovation affects enforcement of patent rights. Conventional wisdom associates the gains from trade with comparative advantage in manufacturing or marketing. We show that these gains imply that patent transactions should increase litigation risk. We identify a new...

An arbiter can decide a case on the basis of his priors, or the two parties to the conflict may present further evidence. The parties may misrepresent evidence in their favor at a cost. At equilibrium the two parties never testify together. When the evidence is much in favor of one party, this...

We study the determinants of patent suits and their outcomes over the period 1978-99 by linking detailed information from the U.S. patent office, the federal court system, and industry sources. The probability of being involved in a suit is very heterogeneous, being much higher for valuable...

This paper assesses the impact of adopting a post-grant review institution in the US patent system by comparing the “opposition careers” of European Patent Office (EPO) equivalents of litigated US patents to those of a control group of EPO patents. We demonstrate several novel methods of...