An Index Number Formula Problem
Author: Mick Silver
Publisher: International Monetary Fund
Published: 2009-01-01
Total Pages: 22
ISBN-13: 145187166X
DOWNLOAD EBOOKIndex number theory informs us that if data on matched prices and quantities are available, a superlative index number formula is best to aggregate heterogeneous items, and a unit value index to aggregate homogeneous ones. The formulas can give very different results. Neglected is the practical case of broadly comparable items. This paper provides a formal analysis as to why such formulas differ and proposes a solution to this index number problem.