In fact, the exchange rate in 2003 was ¥115. What might account for the discrepancy? (Price levelswere measured using the consumer price index.)ANSWER. The discrepancy between the predicted rate of $125 and the actual rate of $115 could be due to mis-measurement of the relevant price indices. Estimates based on narrower price indices reflecting only traded goods prices would probably be closer to the mark. Alternatively, it could be due to a switch in investors' preferences from U.S. dollar to non-dollar assets.