Through the Hartz reforms, German active labour market policy was fundamentally restructured and has since been systematically evaluated. This paper reviews the recent evaluation findings and draws some conclusions for the future setup of active labour market policies in Germany. It argues in...

Should arbitrators adjudicate on the basis of their own investigations, or invite the interested parties to make their cases and decide on the basis of the information so gathered? I call the former the inquisitorial procedure in arbitration and the latter the adversarial procedure. I conduct a...

Evaluating the impact of transport infrastructure meets a major challenge since rail lines are not randomly located. We use the natural experiment offered by the opening and progressive extension of the Regional Express Rail (RER) between 1970 and 2000 in the Paris metropolitan region, and in...

Evaluations of new infrastructure in developing countries typically focus on direct effects, such as the impact of an electrifification program on household energy use. But if new infrastructure induces people to move into an area, other local publicly provided goods may become congested,...

We conduct the first systematic evaluation of the world’s largest community-based development program--China’s flagship poverty alleviation program began in 2001 which finances public investments in designated poor villages based on participatory village planning. We use matching methods and...

The construction of large dams is one of the most costly and controversial forms of public infrastructure investment in developing countries, but little is known about their impact. This paper studies the productivity and distributional effects of large dams in India. To account for endogenous...

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...

Using new data on citations to university patents and scientific publications, and measures of distance based on Google maps, we study how geography affects university knowledge diffusion. We show that knowledge flows from patents are localized in two respects: they decline sharply with distance...

This paper discusses the Fedon case law of the European Court of Justice (ECJ), which involved a claim for compensation by Fedon (an Italian producer of eye glass cases) from the EU for the imposition of WTO-authorized retaliatory trade barriers by the United States following the failure by the...

Cumulative innovation is central to economic growth. Do patent rights facilitate or impede such follow-on innovation? This paper studies the effect of removing patent protection through court invalidation on the subsequent research related to the focal patent, as measured by later citations. We...