This paper analyses factors determining the choice between standard and org
anic farming technology in Finland by numerically iterating a Bellman equat
ion backwards in time. The unknown parameters of a switching-type Probit mo
del are estimated by maximum likelihood estimation. The maximised values of
the uncertain revenue streams are simulated. The results suggest that decr
easing output prices and increasing direct subsidies trigger the switch to
organic farming. The switch is also more likely on farms having large land
areas and low yields. Intensive livestock production and labour-intensive p
roduction decrease the probability of switching to organic farming.