Formal multilateral trade negotiations increase the pressure brought to bear on protectionist economies by foreign interests. This paper explores the hypothesis that successful negotiations yield mixes of policy reforms which contribute to internationalist objectives but which minimally disturb the prior domestic political market equilibrium. This disturbance is measured using weighted objective functions, the weights in which embody revealed policy preferences. Governments are assumed to reflect these preferences in a strategic trade policy formation process which uses empirically-based conjectures as to the responses of other governments and private agents. The approach is applied to the negotiations on agricultural trade policy and, in particular, to the protectionist Common Agricultural Policy of the European Community.