Retroactiveness

Then, too, it was divorced from the disagreeable features of retroactiveness and partisanship which had inspired the particularly bitter condemnation of the Salary Acts of 1816 and 1873.

The author reviews the history of the Wholesale Price Index, the Consumer Price Index, and Parity Index, pointing out the wide variation that in the past has characterized frequency of revision (intervals of revision), retroactiveness of revisions . . . .

However, it can be shown that a model with this retroactive feature will generate qualitatively identical results with respect to the dynamic pricing behavior as a model without retroactiveness.