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Does 'price framing' influence empirical estimates in Discrete Choice Experiments: The case study for the South African wine industry

Author

Listed:
  • Lydia Chikumbi

    (University of Cape Town)

  • Milan Scasny

    (Charles University)

Abstract

The approach and survey used to examine non-market value in a stated preference study can influence the outcomes and impact the validity and reliability of value estimates. While prior research has investigated the impact of 'price framing' on decision-making in other disciplines, (i.e. marketing & psychology), little is known about its validity and reliability in Discrete Choice Experiments (DCEs) and environmental valuation. The study explores the effect of 'price framing' on DCE measurements. The tests are carried out using data from a choice experiment on preferences for natural preservatives in wine. The same respondents completed a nearly identical DCE survey, one with a real price and another with a percentage price change as cost attribute. 611 respondents completed the survey, and a panel mixed logit model was used for the analysis. Results demonstrate that 'price framing' remarkably influenced respondents WTP changes in attributes. The data reveals that while the rank order of importance of attributes, signs, and significance levels are similar for the two samples, they differ in the parameter magnitudes. The study sheds light on the establishment of guidelines for developing valid cost attributes in DCEs studies.

Suggested Citation

  • Lydia Chikumbi & Milan Scasny, 2022. "Does 'price framing' influence empirical estimates in Discrete Choice Experiments: The case study for the South African wine industry," ERSA Working Paper Series 36, Economic Research Southern Africa.
    • Handle: RePEc:rza:ersawp:36
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    References listed on IDEAS

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    JEL classification:

    • D00 - Microeconomics - - General - - - General
    • D0 - Microeconomics - - General
    • Q5 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics
    • Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics

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