The existing literature identifies patent thickets indirectly. In this paper we propose a novel measure based on patent citations which allows us to measure the density of patent thickets directly. We discuss the algorithm which generates the measure and present descriptive results validating...

A PAYGO system may serve as insurance against not having children and as an enforcement device for ungrateful children who are unwilling to pay their parents a pension. In fact, the latter was Bismarck’s historic motive for introducing this system. It is true that the PAYGO system reduces the...

Due to exceptionally low birth rates, the dynamism of Europe will be lagging behind that of other regions of the world for the time being. The paper assembles a rich body of comparative empirical data to clarify the extent of the demographic problems for the EU countries. It advances the view...

The forces of the market and systems competition bring about economic and social convergence in Europe, and there is no need for social policies at the EU level. Social harmonization would distort migration flows and slow down the speed of economic convergence. National welfare states will be...

Globalisation means gains from trade, but not for everyone. As gains from trade come along with factor price convergence, substantial fractions of the working classes in the high-wage countries of the West are likely to belong to the group of losers. In this situation it is tempting for the...

This paper discusses how an industrialized country could defend the wages and social benefits of its unskilled workers against wage competition from immigrants. It shows that fixing social standards harms the workers and that fixing social replacement incomes implies migration into unemployment....

Recent studies of outlaw communities provide qualitative evidence of their existence and the organisation of the underlying innovation processes. We provide descriptive results from a large scale survey of two online outlaw communities focussing on Microsoft's XBox. In line with previous...

Among the most prominent theoretical frameworks dealing with the economic underlyings of firms’ make-or-buy decisions are Transaction Cost Economics (TCE) and the Resourced Based View (RBV). Relying on panel data covering 107 European firms over eight years I test predictions from both TCE and...

We analyze the duration of the patent examination process at the European Patent Office (EPO). Our data contain information related to the patent’s economic and technical relevance, EPO capacity and workload as well as novel citation measures which are derived from the EPO’s search reports....