In price indexing, Regimen refers to:

• A. The selected goods and services priced for the purpose of compiling a price index.
• B. The total price of all goods in the basket.
• C. The frequency of data collection.
• D. The geographic scope of the index.

Answer: (A)

In price indexing, the regimen is the fixed set of goods and services that are priced to compile the index. It defines exactly which items are included in the basket that you track over time. By keeping this regimen consistent, the index reflects true changes in prices rather than changes in what’s being measured. The total price of all goods in the basket would be the current cost of that basket, not the regimen itself. The frequency of data collection and the geographic scope are about how often and where prices are collected, not which items are being priced. So the regimen refers to the selected goods and services priced for the index.