The paper approaches the problem of assessing the impacts of market and rural development policies oriented at stimulating the growth and spread of organic farming in Italy. From the methodological perspective, an innovative formulation of Pmp is presented and discussed; it is applied to a set of farms belonging to the FADN sample, specifically located in Emilia Romagna and Sicily. The Pmp model has the capacity to estimate the impact of policies on crops not yet present at the time the farm data was recorded. From the empirical standpoint, various sets of policies are simulated on cluster of farms both conventional and in course of conversion in organic production.