I don't know about Norway, but in France it is weighted at 7% of the inflation calculation, which is way below what people actually pay for housing. In theory, it is because housing is considered an investment, but in practice it doesn't seem to hold up and is critized by some economists. I also find it very strange.
> it is because housing is considered an investment
Ok, perhaps that partly makes sense for people buying homes. But paying rent cannot possibly be considered an investment; unless you are trying to marry a landlord or something :-)
