We study the causal impact of invalidating marginally valid patents during post-grant opposition at the European Patent Office on affected inventors' subsequent patenting. We exploit exogenous variation in invalidation by leveraging the participation of a patent's original examiner in the...

We estimate intergenerational mobility of education for people born 1940-1999 at the subnational level for 40 European countries. The result is a panel of mobility indices for 105 mesoregions (NUTS1), and 215 microregions (NUTS2). We use these indices to make three contributions. First, we...

This paper investigates empirically the interrelationships between the daily stock market returns of the Nikkei 225, DAX and Dow Jones Industrial index. Contrary to former work this paper uses the succession of the markets in time to form different econometric models. In this way it is possible...

This paper analyses the determinants of employment reactions of firms when environmental innovations have been carried out. It differentiates hereby between employment increases and decreases. The data stem from a telephone survey covering more than 1500 firms in five European countries that...