The exchange rate insulation puzzle

We confront the notion that flexible rates insulate a country from external disturbances with new evidence on spillovers from euro-area shocks to neighboring countries. We find that in response to euro-area shocks, spillovers are not smaller, and currency movements not significantly larger, in countries that float their currency, relative to those that peg to the euro - the insulation puzzle. Unconditionally, however, currency volatility is significantly higher for floaters. A state-of-the-art open-economy model can fit our conditional evidence on lack of insulation, provided monetary policy targets headline inflation, but only at the cost of missing the unconditional evidence on currency volatility.