between infrastructure and private productivity. The second subject is the determinants of regional infrastructure investment … infrastructure to private production; the essays three to five study besides the productivity effects also the determinants of …

rigidity. The third essay analyses how different unionisation structures affect firm productivity and firm performance in a … among heterogeneous producers and increases average productivity and profit levels, firm-level bargaining allows less … productive entrants to remain in the market. The positive effect of centralised bargaining on average productivity can, however …

on productivity growth, and additionally export behavior has to be persistent over time. Both conditions are empirically …

-, consultation-, and co-determination rights. The effects works councils have on productivity and profits are estimated for medium …-sized manufacturing firms using information from the IAB establishment panel. The results indicate a positive effect on productivity of 6 …

There is a growing number of studies that investigate the effect of trade liberalization on productivity and nearly all … assume that trade policy is independently determined of productivity, hence it is exogenous. I show that this assumption is … of trade protection, productivity directly influences tariffs. Moreover, this productivity-tariff relationship partly …

Ample evidence from micro data suggests that productivity at establishment level is dominated by idiosyncratic factors …. The productivity differences across establishments are very large and persistent even with the narrowest definition of … industries. There is an attempt to identify sources of frictions that cause such productivity dispersion and negatively affect …

Model induction from relational data requires aggregation of values ofattributes of related entities. This paper makes … needed to learn these concepts. (2) Expanding onelevel of the hierarchy, it introduces new aggregation operators thatmodel … byclass. (3) It demonstrates empirically on a noisy business domain thatmore-complex aggregation methods can increase …