Farmers' willingness to switch to organic agriculture: a non-parametric analysis.

Th e present study estimates the farmers' willingness to switch to organic agriculture by using the one-and-one- half-bound dichotomous choice contingent valuation method. We survey 200 farmers in the Kwangsi-myeon, Yesan-gun (Chungnam, Korea) and ask them at what revenue level (based on a 40 kg bag of eco-friendly rice) they would be willing to switch from the conventional agricultural methods to organic agricultural methods. Th e Turnbull model, a non-parametric method, was then used to estimate the willingness to switch to organic agriculture. Th e presented results show that farmers would be willing to convert to organic agriculture if their revenues were increased to 107 369-109 230 KRW per bag from the reference value of 60 000 KRW.