We study the effects of German unification in a model with capital accumulation, skill differences and a welfare state. We argue that this event is similar to a mass migration of low-skilled agents holding no capital into a foreign country. Absent a welfare state, we observe an investment boom,...

We study the effects of German unification on macroeconomic variables in a model with capital accumulation, skill differences and a welfare state. The integration of two economies differing in capital holdings and skill distribution is similar to a mass migration of low-skilled agents holding no...

This paper examines the business cycle properties of a small set of real US macroeconomic time series using a variety of detrending methods. It is shown: (i) that both quantitatively and qualitatively `stylized facts' of US business cycles vary widely across detrending methods; (ii) that...

This paper examines the properties of G-7 cycles using a multicountry Bayesian panel VAR model with time variations, unit specific dynamics and cross country interdependences. We demonstrate the presence of a significant world cycle and show that country specific indicators play a much smaller...

We investigate identifiability issues in DSGE models and their consequences for parameter estimation and model evaluation when the objective function measures the distance between estimated and model impulse responses. We show that observational equivalence, partial and weak identification...

We investigate the similarities of macroeconomic fluctuations in the Mediterranean basin and their convergence. A model with three indicators, covering the West, the East and the MENA portions of the Mediterranean, characterizes well the historical experience since the early 1980. Convergence...

We quantify the importance of the tourism channel for the international transmission of cyclical fluctuations to the Mediterranean basin. We use five destination countries and a number of source countries to provide broad evidence on the link. Source country output shocks produce important...

This paper examines the properties of G-7 cycles using a multicountry Bayesian panel VAR model with time variations, unit specific dynamics and cross country interdependences. We demonstrate the presence of a significant world cycle and show that country specific indicators play a much smaller...

We study what happens to identified shocks and to dynamic responses when the data generating process features q disturbances but less than q variables are used in the empirical model. Identified shocks are mongrels: they are linear combinations of current and past values of all structural...

I study potentials and gaps, permanent and transitory fluctuations in macroeconomic variables using the Smets and Wouter (2007) model. Model-based gaps display low frequency variations; possess more than business cycle fluctuations; have similar frequency representation as potentials, and are...