In this paper an empirical comparison of a number of alternative multilateral indexnumber formulae is undertaken. The magnitude of the effect of choosing one formula over another is ascertained using an appropriate cross-sectional data set constructed under the auspices of the Eurostat-OECD Purchasing Power Parity Programme. To this end, a new indicator is proposed that facilitates the measurement of the difference between two sets of bloc consumption shares, each computed using a different multilateral comparison method.

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Journal Canadian Journal of Economics
Citation
Armstrong, K. (2001). What impact does the choice of formula have on international comparisons?. Canadian Journal of Economics, 34(3), 697–718.