In this paper it is tested which of the various alternative approaches for constructing knowledge spillover pools suggested in existing literature measures the extent to which a firm can costlessly receive external knowlegde best. Since knowledge spillovers are unmeasurable, a 'goodness of fit'...

This paper estimates the effect of heterogeneous university funding stemming from the German Excellence Initiative on a regional firm’s probability to innovate by using a multi-valued two-way fixed effects difference-in-differences model. The estimations show that funding an additional...