The elasticity of aggregate supply of cropland is one key to understanding the degree to which policy-induced increases in demand for biofuel feedstocks or agricultural CO₂ offsets will result in higher prices or expanded crop production. We report land supply elasticities for the United States...

An agricultural projection and greenhouse gas model are used to assess the impact of global cropland expansion on carbon emissions and the sensitivity of those estimates to modifications in assumptions concerning idle cropland, the degree of refinement in carbon coefficients, market responses,...