Recreational Shell\u85sh Harvesting and Health Risks: a Pseudo-Panel Approach Combining Revealed and Stated Preference Data with Correction for On-Site Sampling

In this paper we intend to assess the value of health risks related to recreational shell\u85sh harvesting. Combining revealed and stated prefer-ences data from an on-site survey and using a pseudo-panel approach, we show that people signi\u85cantly value health risks. The combination of stated and revealed preferences data is done through the introduction of the concept of a "hypothetical twin site". Adressing on-site sampling issues within the framework of a random-e¤ect Poisson gamma model al-lows us to derive more accurate estimates of welfare measures. Results also suggest that the demand for recreational shell\u85sh harvesting is an inferior good