Changes in Relative Consumer Prices and the Substitution Bias of the Laspeyres Price Index - Ireland, 1985-2001

R. A. Somerville
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R. A. Somerville: National University of Ireland, Maynooth

The Economic and Social Review, 2004, vol. 35, issue 1, 55-82

Abstract: This paper shows that Irish relative consumer prices have changed significantly, 1985- 2001, at the ten commodity-group level. A “true” cost-of-living index is derived from Madden’s (1993) parameter estimates for an Almost Ideal Demand System. Despite relative price changes, the substitution bias of a computed Laspeyres index is small, and the official Consumer Price Index tracks the computed index closely. Superlative indices are also constructed, but are not satisfactory cost-of-living indices in this context. Cost-of-living indices are computed for different income groups, and the impact of inflation in recent years is found to be negatively correlated with income.

Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eso:journl:v:35:y:2004:i:1:p:55-82

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