Question

write short note base shifting​

Answer 1

Answer:For a variety of reasons, it frequently becomes necessary to change the reference base of an index number series from one time to another without returning to the original raw data and recomputing the entire series. This change of reference base period is usually referred to as “shifting the base”.

Answer 2

Answer:

Shifting of base period or reference period of the index is known as base shifting. This can be done using the following relation as, Example The following are the index numbers of a commodity taking 1991 as the base. Find the index numbers by changing the base to 1994.