The purpose of this paper is to demonstrate how some aspects of agrimonetary system of the Common Agricultural Policy may be analysed using spatial equilibrium diagrams, modified to include foreign exchange sectors. The model analyses the effects of monetary compensatory amounts on intra‐Community trade. The results are: first, when the intervention price is below the market price, both the importing and the exporting country gain in social welfare; and second, when the intervention price is effective, only the importing country gains. In each case the cost of the MCA's exceeds these welfare gains. From a budgetary viewpoint there is a trade‐off between the cost of intervention buying and the cost of the trade subs