To further strengthen European integration much can be done and is actually needed. The present work provides a wide range of empirical results and corresponding policy recommendations from the perspective of economics. The collection of articles here provides a clear illustration that there is a lot of potential to amend the architecture of the European Union and the euro area, respectively. It is well understood that the process of European integration is a continuous process which requires adjustments from time to time. This thesis provides results which indicate that very specific measures, such as facilitating a catch-up in terms of institutional quality by central and eastern European countries, would be beneficial for the process of European integration. This is in line with the general claim that institutional harmonization has to be enhanced.
It is shown that within the more narrow framework of the euro area measures to enhance the functioning of the single currency are needed as well. In sum, this implies a strong need for policy measures in response to the recent developments of European integration. Moreover, it is demonstrated that common rules have to be equally binding for all countries. In fact, a number of necessary policy measures are already being implemented, for example the implementation of Basel III. With respect to implementation, results of this thesis imply that such measures have to be implemented carefully. Policy makers have to take into account country-specific characteristics when implementing one-fits-all policy measures. Nonetheless, the uniform European rules are not questioned here.
In addition to the results and corresponding policy recommendations, the bulk of the research done here also contributes methodologically to economics. The increasing availability of micro-data is used to address macroeconomic questions and derive corresponding macroeconomic results and implications. Future research in economics will most likely make more and more use of such data
