01633cas a2200289 a 4500 AALejournalIMF005530 230101c9999 xx r poo 0 0eng d 5.00 USD 9781451871661 1018-5941 BD-DhAAL BD-DhAAL Silver, Mick. An Index Number Formula Problem : The Aggregation of Broadly Comparable items / Mick Silver. Washington, D.C. : International Monetary Fund, 2009. 1 online resource (22 pages) IMF Working Papers <strong>Off-Campus Access:</strong> No User ID or Password Required <strong>On-Campus Access:</strong> No User ID or Password Required Electronic access restricted to authorized BRAC University faculty, staff and students Index 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. Mode of access: Internet Index Number imf Price Index imf Unit Value Index imf WP imf IMF Working Papers; Working Paper ; No. 2009/019 Full text available on IMF http://elibrary.imf.org/view/journals/001/2009/019/001.2009.issue-019-en.xml IMF e-Library