In addition, the difference between this DI and the correspondent DI for input prices is often used as a proxy for profit margins (Chart 10).
It is known that the DI for output prices tends to be downward-biased and the DI for input prices tends to be upward-biased, so the interpretation of these indicators needs to take these tendencies into account.11 The drawback of this approach is that the data are only available for the next quarter, so only very short-term inflation expectations can be measured.