Quality adjusted price indexes and the Willig condition

V. Kerry Smith, H. Spencer Banzhaf

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


This paper provides a graphical explanation of Willig's condition for developing consistent price indexes for quality change. The framework also describes how the single crossing condition generalizes the Willig condition.

Original languageEnglish (US)
Pages (from-to)43-48
Number of pages6
JournalEconomics Letters
Issue number1
StatePublished - Jan 2007


  • Price indexes
  • Quality adjustment
  • Weak complementarity
  • Willig condition

ASJC Scopus subject areas

  • Finance
  • Economics and Econometrics


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