Ownership form has strong implications for firm performance and the nature of competition in a market. Whereas there are differences across ownership forms on high levels of aggregation, the most obvious effects of ownership become visible when samples of establishments are observed at a more...

This dissertation considers the determinants of countries' real income per capita, controlling for the effects of their physical location. We use meta-analysis to summarize the results of previous research, and then apply a new estimator to control for spatial effects in a system of simultaneous...

We propose a test of the Porter hypothesis for the Dutch horticulture sector, using a stochastic production frontier analysis allowing for an inclusion of policy variables to account for the effect of environmental policy of firm performance. We find considerable heterogeneity in the way firms...