The effects of the exchange rate and the income and money supply of the United States and its major trading partners on the U.S. agricultural trade balance are examined using an autoregressive distributed lag (ARDL) model. Results suggest that the exchange rate is the key determinant of the short- and long-run behavior of the trade balance. It is also found that the income and money supply in both the United States and the trading partners have significant impacts on U.S. agricultural trade in both the short and long run.