Aggregation of Economic Indicators Across Countries

Download or read book Aggregation of Economic Indicators Across Countries written by Ms.Anne Marie Gulde and published by International Monetary Fund. This book was released on 1992-05 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.