The present thesis consists of seven papers specifying and analysing models of direct-interactions-driven collective economic phenomena. Within theories and models of coordination in large decentralized market economies (and analogously also within theories and models of coordination in natural...

The essays of this book are contributions to the empirical Literature in International Trade and Public Economics. They deal with the relationship between the structure and quality of the public sector and the process of economic integration. Two of the essays add to the empirical determinants...

Diese Dissertation beschäftigt sich mit der Charakterisierung optimaler Arbeitsmarktpolitik für verschiedene Erweiterungen des Diamond-Mortensen-Pissarides Modells. Kapitel 1 beschreibt optimale Arbeitsmarktpolitik in einem ökonomisch turbulenten Umfeld, welches in Form von...