For main industrial countries such as Japan and the U. S. Group of answer choices there is almost the same month-to-month variability of the exchange rate and price levels. there is much more month-to-month variability of the exchange rate, suggesting that price levels are relatively sticky in the short run. there is much less month-to-month variability of the exchange rate, suggesting that price levels are relatively sticky in the short run. it is hard to tell whether month-to-month variability of the exchange rate is similar to changes in price levels.