Zuwanderungspolitik und die Finanzierung der Sozialsysteme sind in Deutschland, wie auch in vielen anderen Staaten Gegenstand sozialpolitischer Auseinandersetzung gewesen. Beiden Themen werden aber meist getrennt voneinander diskutiert. Deswegen geht diese Arbeit der Frage nach, ob und wie durch...

The following dissertation is a collection of four stand-alone research papers. The focus of my research is on the interplay of immigration, native human-capital investment and the resulting consequences for the labour market outcome of natives and necessary implications for the immigration...

The following dissertation is a collection of four stand-alone research papers. The common theme of all papers is the analysis of the decision of heterogeneous individuals about investing in education. The first paper analyses how these decisions affect the impact of globalisation or...

Migration of people from one country to another and their integration into the society of the destination country constitute a long and complex process. This process begins with the first plan of a person to leave her home country. It does not end until the immigrant stops assimilating and...

Germany has been an immigration country for more than 30 years now, although many politicians claim the opposite and many people in Germany are inclined to agree with their assessment. However, it is the actual experience with immigration, and not what people would like to experience, which...

Nord-Süd-Handel, der Handel zwischen Entwicklungs- und Industrieländern, war über lange Zeit hinweg das bestimmende Muster der weltweiten Warenströme. In der Nachkriegszeit wurde jedoch im Rahmen der Prebisch-Singer-Hypothese vermehrt Kritik am Nord-Süd-Handel laut. Hierbei wurde...

This thesis uses the Data Envelopment Analysis to analyze topics in economic history. All parts are concerned with productivity and efficiency. For the United States in the nineteenth century, it is shown that factories were more efficient than artisanal shops, and the hypothesis that regional...