This study compares two channels for global impact on local volatility: the direct channel in which global variables affect the expected value of local volatility but not its persistence, and a new channel in which global variables affect local volatility by changing its persistence over time....

We lay out an empirical and a theoretical model to analyze the effects of non-fundamental exchange rate volatility on economic activity and welfare. In the first part of the paper, the GARCH-SVARmodel is applied to measure empirically the effect of the conditional exogenous exchange rate...