07-WP 421 (Revised)
An experiment was conducted in France to evaluate the impact of health information on consumers' choice between two different types of fish. Successive messages revealing risks (methylmercury) and benefits (omega-3s) of consuming the fish, along with consumption recommendations, were delivered. Results show a significant difference of reaction according to the order and type of information. The information about risks had a larger marginal impact on change in willingness to pay (WTP) than did the information about benefits. While the results show that detailed messages on risks/benefits, including recommendations for nutrition behavior, matter in the modification of WTP, 40% of respondents did not change their initial choices after the revelation of health information.
This working paper was published as Marette, Stéphan, Jutta Roosen, Sandrine Blanchemanche and Philippe Verger, "The Choice of Fish Species: An Experiment Measuring the Impact of Risk and Benefit Information," Journal of Agricultural and Resource Economics 33 (2008): 1–18.
Marette, Stéphan; Roosen, Jutta; Blanchemanche, Sandrine; and Verger, Philippe, "Health Information and the Choice of Fish Species: An Experiment Measuring the Impact of Risk and Benefit Information" (2007). CARD Working Papers. 469.