The Impact of the Definition of Inflation on the Effectiveness of Inflation Accounting Adjustments

In tests of inflation accounting methods, inflation is generally seen as a simple phenomenon: the prices of all elements change at the same rate. The example presented here deals with a different case: inflation is characterized by changes in the structure of prices. In particular, prices of articles bought and articles sold do not vary at the same rates.
In this context, it is observed that three types of adjustments are not effective, i.e. they do not have the potential to report real or nominal rates of return. This result should be considered as a criticism of the coherence of inflation accounting methods.