Welfare gains from quality certification of infant foods: Results from a market experiment in mali
In low-income countries, malnutrition is often most sever among infants of six to twenty-four months. They need higher-density foods than the family diet, but density is a credence attribute. We hypothesize that the premium now paid for heavily advertised brands reflects demand for quality assurance, which could be provided at lower cost to competing firms through third-party certification. We use a new market experiment to find that mothers' average willingness-to-pay for certification is about $1.75/kg, for four times its cost, so that total economic-surplus gains from introducing certification to Mali would be on the order of $1 million annually.
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"Resolving Differences in Willingness to Pay and Willingness to Accept,"
Staff General Research Papers
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