The following calculation is used to compute the above-mentioned JBLI:

- Sub-indices of the official inflations rates (Belgian Harmonised Index of Consumer Prices and Luxembourgish Consumer Price Index) are aggregated together using a weighting of approximately 80:20 according to how many staff members are based in Belgium and in Luxembourg.
- The sub-indices are then aggregated together using expenditure structures (share of the total expenditure that can be attributed to each sub-index) for staff families working in Brussels.
Continue reading Family Budget Survey starts this week in Brussels







