Ignoring items with large price changes may enhance the informational content of a price index. As an application of the metrically trimmed mean (Kim, 1992) we suggest to discard the individual price changes that deviate the most from the median. Focusing on outliers increases the efficiency...

We investigate a switch from fixed-weighted national accounts data to chain-type data in the quarterly macroeconometric model Mona. As in other countries the idea behind this change in the national accounts data has been to reduce the substitution bias, which has grown with the amount of...