The Hedonic Country Product Dummy Method and Quality Adjustments for Purchasing Power Parity Calculations

December 1, 2009

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Format: Chicago

Mick Silver. The Hedonic Country Product Dummy Method and Quality Adjustments for Purchasing Power Parity Calculations, (USA: International Monetary Fund, 2009) accessed November 23, 2024

Disclaimer: This Working Paper should not be reported as representing the views of the IMF.The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate

Summary

The 2005 International Comparison Program's (ICP) estimates of economy-wide purchasing power parity (PPP) are based on parity estimates for 155 basic expenditure headings, mainly estimated using country product dummy (CPD) regressions. The estimates are potentially inefficient and open to omitted variable bias for two reasons. First, they use average prices across outlets as the left-hand-side variable. Second, quality-adjusted prices of non-comparable replacements, required when products in outlets do not match the required specifications, cannot be effectively included. This paper provides an analytical framework based on panel data and hedonic CPD regressions for ameliorating these sources of bias and inefficiency.

Subject: Labor, Price adjustments, Public investment and public-private partnerships (PPP), Purchasing power parity, Silver

Keywords: WP

Publication Details

Pages:

28
Volume:

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DOI:

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Issue:

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Series:

Working Paper No. 2009/271
Stock No:

WPIEA2009271
ISBN:

9781451874167
ISSN:

1018-5941

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