This paper provides a conceptual and empirical general equilibrium framework for the analysis of the impact of trade reform on welfare and the environment. The analysis is applied to Côte d'Ivoire explicitly considering externalities affecting biomass (natural vegetation), which is shown to be an important factor determining agricultural productivity.

The simulation general equilibrium analysis shows that the agricultural output composition effect dominates the agricultural expansion effect for the case of complete trade liberalization. Thus, in this case trade liberalization causes a significant improvement in the rural biomass stock by cutting land area cultivated, increases agricultural productivity, and induces dramatic welfare gains. That is, trade liberalization is a win–win type of policy in this case. However, partial trade liberalization that only reduces protection to non-agricultural goods (and does not reduce tariffs to agricultural import substitutes and does not reduce export taxes) causes a further deterioration of the biomass resources and reduces welfare.