Recent attempts to incorporate optimal fiscal policy into NewKeynesian models subject to nominal inertia, have tended to assume that policymakers are benevolent and have access to a commitment technology. A separateliterature, on the New Political Economy, has focused on real economies...

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...