The paper compares different estimation strategies of ordered response models in the presence of non-random unobserved heterogeneity. By running Monte Carlo simulations with a range of randomly generated panel data of differing cross-sectional and longitudinal dimension sizes, we assess the...

This study investigates whether services sectors’ agglomeration can be explained within a common New Economic Geography model by Krugman and Venables (1996). Special feature of this modeling is to account for the lower importance of intermediate goods received for the services sector, a fact...

This study empirically investigates the relevance of Traditional Trade Theory, New Trade Theory and New Economic Geography in explaining industrial and services sectors' agglomeration in the European Union. Therefore, new dynamic panel data estimation techniques will be employed. Static panel...

This paper proposes a theory for the gradual evolution of knowledge diffusion and growth over the very long run. A feedback mechanism between capital accumulation and the ease of knowledge diffusion explains a long epoch of (quasi-) stasis and an epoch of high growth linked by a gradual economic...

When grades lose their informative value because the percentage of students receiving the best grade rises without any corresponding increase in ability, this is called grade inflation. Conventional wisdom says that such grade inflation is unavoidable since it is essentially costless to award...

Der Begriff der europäischen Integration findet in wissenschaftlichen Beiträgen und politi-schen Debatten zwar große Verwendung, eine einheitliche Definition existiert jedoch nicht. Hierdurch sind Integrationsschritte oder -prozesse kaum quantifizierbar. Auch wird selten darauf eingegangen,...

A model is presented where universities competitively supply education to mobile students. Students are subject to a liquidity constraint so that tuition must be paid out of pre-university income. It is shown that student loans provided by home jurisdictions will ensure an efficient quality of...

In the light of the current economic debt crisis within the Euro zone, the heterogeneity of EU members has becoming increasingly apparent. This heterogeneity is evident not only in some single macroeconomic variables but also in the level of economic integration with the other EU members....

This paper investigates the link between exporting and importing activities and firm performance using a rich dataset on Egyptian and Moroccan firms. We test the export premium, self-selection and learning-by-exporting hypotheses using a number of firm characteristics. Our analysis also includes...

We assess empirically whether foreign official development assistance (ODA) has been effective in alleviating HIV/AIDS epidemics, which figures prominently among the Millennium Development Goals. We employ a difference-in-difference-in-differences approach to identify the treatment effect of ODA...