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 ...

The Consumer Price Index Manual (2004) provides guidelines for aggregation formulas that are promulgated at IMF training courses and technical assistance missions. This paper develops elementary level ...

W. Erwin Diewert, Index Number Theory Using Differences Rather than Ratios, The American Journal of Economics and Sociology, Vol. 64, No. 1, Special Invited Issue: Celebrating Irving Fisher: The ...