In Japan, there are tariffs, price supports, and import restrictions such quotas on rice. Compare the price of rice in Japan to the price in the United States by using the yen/dollar exchange rate to convert the prices to a common currency. Do you see the wedge in the prices that the theory predicts? (Later in the book, we will also predict a single price of goods when trade barriers are insignificant through a theory called purchasing power parity.) If in fact the prices of rice expressed in the same currency were the same, what would the yen/dollar exchange rate have to be?