This dissertation consists of three independent research papers and contributes to the empirical analysis of the interaction between business and financial cycles from different perspectives. The first paper uses a non-linear multilevel dynamic factor model to better understand the changing...

In this dissertation new test statistics for the (panel) unit root hypothesis are presented. Besides a novel approach to testing the unit root hypothesis in univariate time series, the major part of this thesis is dedicated to unit root testing in cross sectionally dependent panels with...

Empirical study of causality between inflation, inflation uncertainty and other macroeconomicy quantities. Additionally, the issue of how to measure the unobservable inflation uncertainty is addressed.