We analyze the influence of US monetary policy on commodity price volatility. Expected target rate changes and communications decrease volatility, whereas target rate surprises and unorthodox measures increase it. The “calming” effect of communication is reduced during the financial crisis.

Using a GARCH model, we analyze the influence of U.S. monetary policy action and communication on the price volatility of commodities for the period 1998–2009. We find, first, that U.S. monetary policy events have an economically significant impact on price volatility. Second, expected target...