We state that long-run restrictions that identify structural shocks in VAR models with unit roots lose their original interpretation if the fractional integration order of the affected variable is below one. For such fractionally integrated models we consider a medium-run approach that employs...

This paper fills a gap in the literature by investigating whether temporary agency employment substitutes regular employment. To take into account the interaction between the two employment forms, we identify a SVAR model with correlated innovations by volatility regimes. We show that a positive...

This paper investigates whether codependence restrictions can be uniquely imposed on VAR and VEC models via the so-called pseudo-structural form used in the literature. Codependence of order q is given if a linear combination of autocorrelated variables eliminates the serial correlation after q...

The present work deals with a frequently detected failure of the uncovered interest rate parity (UIP) - the absence of bivariate cointegration between domestic and foreign interest rates. We explain the non-stationarity of the interest differential via central bank reactions to exchange rate...

The present paper sheds further light on a well-known (alleged) violation of the expectations hypothesis of the term structure (EHT): the frequent finding of unit roots in interest rate spreads. We show that the EHT implies (i) that the nonstationarity stems from the holding premium, which is...

This paper analyzes volatility spillovers in multivariate GARCH-type models. We show that the cross-effects between the conditional variances determine the persistence of the transmitted volatility innovations. In particular, the influence of a foreign volatility innovation on a conditional...

This paper studies the conditional patterns of unemployment dynamics in Germany. We employ a structural VAR model and identify a technology shock and two policy shocks by using standard restrictions. Interestingly, the worker reallocation process varies substantially with the identified shocks....

In the academic literature, the economic interpretation of stock market volatility is inherently ambivalent, being considered an indicator of either information flow or uncertainty. We show in a stylized model economy that both views suggest volatility-dependent cross-market spillovers. If...

Nach Meinung von Hans Fehr, Lehrstuhl für Finanzwissenschaft, Universität Würzburg, belastet der aktuelle Gesetzentwurf zur Reform der Rentenversicherung pauschal die Beitragszahler, konterkariert die eingeleitete Anhebung des Rentenzugangsalters und hilft nur wenig gegen die künftig...

This paper investigates which shocks drive asynchrony of business cycles in the euro area. Thereby, it unites two strands of literature, those on common features and on structural VAR analysis. In particular, we show that the presence of a common cycle implies collinearity of structural impulse...