01754cas a2200253 a 4500 AALejournalIMF001707 230101c9999 xx r poo 0 0eng d 5.00 USD 9781451845396 1018-5941 BD-DhAAL BD-DhAAL Schulze-Gattas, Marianne. Aggregation of Economic Indicators Across Countries : Exchange Rate versus PPP Based GDP Weights / Marianne Schulze-Gattas, Anne Gulde. Washington, D.C. : International Monetary Fund, 1992. 1 online resource (44 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 Relative GDP shares are frequently used as weights in aggregations. In order to ensure that these weights reflect countries' shares in real output, GDP data in national currencies should be converted into a common numeraire currency at purchasing power parity (PPP) rates. A review of the empirical evidence on the relationship between exchange rates and prices suggests that market (or official) exchange rates are generally poor proxies for PPP rates. The paper examines the PPP-based GDP data generated by the International Comparison Program and compares aggregations with PPP- and exchange rate-based GDP weights. Mode of access: Internet Gulde, Anne. IMF Working Papers; Working Paper ; No. 1992/036 Full text available on IMF http://elibrary.imf.org/view/journals/001/1992/036/001.1992.issue-036-en.xml IMF e-Library