Essentially, the impact of the currency union on member countries depends on whether the common currency area is optimal in the sense that the effect of the asymmetric shocks is small, Mundell (1961). Typically, researchers use VAR of different types to analyze the data. For robustness, we use...

We estimate an unrestricted VAR to summarize the dynamics of the stringency of policy and COVID-19 infections in New Zealand, Australia, Denmark, Sweden, and the U.S. using the newly published Stringency Index by the Blavatnik School of Government at the University of Oxford, Hale et al. (2020)....