[...]The task facing the Eurosystem is even morecomplex than that facing countries with stable monetaryregimes, where the measurement of the national andregional impact of policy has already proved to be extremelydifficult. The creation of the Eurosystem constitutes aregime shift in virtually...

This paper compares the mixed-data sampling (MIDAS) and mixed-frequency VAR(MF-VAR) approaches to model speci…cation in the presence of mixed-frequency data,e.g., monthly and quarterly series. MIDAS leads to parsimonious models based onexponential lag polynomials for the coe¢ cients, whereas...