摘要：With the growing concerns of stakeholders regarding the environmental impacts of ethanol and biodiesel development, the quantitative assessment of biofuel policies virtues played an increasingly important role in the public debate. Numerous studies have tried to compute the indirect land use effects (iLUC) of the incremental crops demand for bioenergy, aiming to provide policymakers precise values for the iLUC coefficients. However, due to many uncertainties, these estimates have been criticised. In this paper, we show that models are still relevant for conceptualisation and understanding of problems as complicated as biofuel policies and among other aspects, iLUC issues. In particular, if doubts remain – and will remain – on the exact values of iLUC coefficients, the conclusions related to key policy options, such as what biofuel type to prefer and what trade policy to adopt, appears quite robust and should be the focus of larger attention.
关键词：Biofuels;iLUC;Land Use Change;Computable General Equilibrium;Agricultural Trade Policies.
