Jan Bruha

Inflation and Output Comovement in the Euro Area: Love at Second Sight?

This paper discusses comovement between inflation and output in the euro area. The strength of the comovement may not be apparent at first sight, but is clear at business cycle frequencies. Our results suggest that at business cycle frequency, the output and core inflation comovement is high and stable, and that inflation lags the cycle in output with roughly half of its variance. The strong relationship of output and inflation hints at the importance of demand shocks for the euro area business cycle.

Real exchange rates in emerging economies

We analyse the role of various investment margins in explaining the real exchange rate appreciation recorded in European transition countries. We present a model that introduces a quality investment margin and show that the margin is needed for replicating the observed pace of real exchange rate appreciation.

Output and Inflation Co-Movement: An Update on Business-Cycle Stylized Facts

What are the drivers of business cycle fluctuations? And how many are there? By documenting strong and predictable co-movement of real variables during the business cycle in a sample of advanced economies, we argue that most business cycle fluctuations are driven by one major factor. The positive co-movement of real output and inflation convincingly argues for a demand story. We propose a simple statistic that can compare data and models. Based on this statistic, we show that the recent vintage of structural economic models has difficulties replicating the stylized facts we document.