This paper generalizes the existing cointegration analysis literature in two respects. Firstly, the problem of efficient estimation of vector error correction models containing exogenous (1) variables is examined. The asymptotic distributions of the (log- )likelihood ratio statistics for testing...

The real interest parity (RIP) condition combines two cornerstones in international finance, uncovered interest parity (UIP) and ex ante purchasing power parity (PPP). The extent of deviation from RIP is therefore an indicator of the lack of product and financial market integration. This paper...

This paper analyses the challenges that high public debt and ageing populations pose to medium-term growth. First, macroeconometric model simulations suggest that medium-term growth can benefit from credible fiscal consolidation, partly through reductions in sovereign risk premia. Second, a...

Im Rahmen des vorliegenden IW-Reports werden die Konsequenzen der aktuellen handelspolitischen Herausforderungen für die deutsche Wirtschaft geschätzt und die Größenordnung ihrer gesamtwirtschaftlichen Effekte quantifiziert. Die Simulationen mit dem Oxford Economics Global Economic Model...

Since the start of European monetary union, the macroeconomic situation in Germany can in many respects only be analyzed in combination with the situation in the rest of the euro area. To take this into account, a small macroeconometric model is constructed that models the euro area as...

Policy simulations for national economies with econometric models in general are done using a stand alone national model with exogenous export values and import prices. In a globalised world such an exercise is critical, since the policy in question may change the export prices and the import...

The COVID-19 pandemic has led to enormous data movements that strongly affect parameters and forecasts from standard VARs. To address these issues, we propose VAR models with outlier-augmented stochastic volatility (SV) that combine transitory and persistent changes in volatility. The resulting...

It is commonly accepted that information is helpful if it can be exploited to improve a decision making process. In economics, decisions are often based on forecasts of up- or downward movements of the variable of interest. We point out that directional forecasts can provide a useful framework...

This paper assesses the OECD’s projections for GDP growth and inflation during the global financial crisis and recovery, focussing on lessons that can be learned. The projections repeatedly over-estimated growth, failing to anticipate the extent of the slowdown and later the weak pace of the...

We present evidence that global vectorautoregressive (GVAR) models produce significantly more accurate recession forecasts than country-specific time-series models in a Bayesian framework. This result holds for most countries and forecast horizons as well as for several country groups.