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Volatility, geography, asset classes, returns
We analyze the implied volatility-return relationship across asset classes, geographical regions, and time, extending efforts documenting the instantaneous relation between implied volatility changes and index returns. Using a GARCH process with lags, we confirm that implied volatility depends on the immediate index changes. However, contemporaneous volatility changes are also explained by lagged index and volatility. While short-term volatility is heavily asymmetric on the side of negative moves, there is long-term indifference between positive and negative moves. Volatility transfers from larger, primary markets to smaller, secondary markets. Volatility in larger markets also transfers to the commodity and currency markets.
Associate Professor