The value of collective reputation for environmentally-friendly production methods: the case of Val di Gresta carrots

This paper investigates preferences for various environment-friendly production systems using 1949 choices from a sample of 240 respondents that chose amongst different types of carrots. The and multi-attribute stated-preference data collection was based on an experimental designed tailored to identify interaction effects between production methods and place of origin we estimate the effect of collective reputations for growers of an Alpine valley known to be completely dedicated to organic production. The implied WTP distributions are positive for organic and integrated pest management and provide evidence of recognition of a collective reputation for environmentally friendly production methods. Marginal utility of income is found to be systematically linked to socio-economic covariates, while unobserved heterogeneity is found for organic and bio-dynamic production methods and for place of origin, but not for integrated pest management. WTP for organic produce from Val di Gresta is found to be around 1-2 euro/kg depending on budget constraints, and not statistically significant for bio-dynamic production. The study confirms the existence of the growers' reputation for EFPMs and provides an empirical estimate of the premium the market awards to such a reputation.