Recreational shellfish harvesting and health risks: A pseudo-panel approach combining revealed and stated preference data with correction for on-site sampling

This paper assesses the value of health risks related to recreational shellfish harvesting. Combining revealed and stated preferences data from an on-site survey and using a pseudo-panel approach shows that people significantly value health risks. The combination of stated and revealed preferences data is realised through the introduction of the concept of a “hypothetical twin site”. Addressing on-site sampling issues within the framework of a random-effect Poisson gamma model allows a derivation of more accurate estimates of welfare measures. Results also suggest that the demand for recreational shellfish harvesting is an inferior good