For our purposes, the land use allocation structure is extended by taking into account that the degree of substitutability differs between types of land (Huang et al., It distinguishes different types of land in a nested 3-level CET structure. The model covers several types of land use with different suitability levels for various crops (i.e. cereal grains, oilseeds, sugar cane/sugar beet and other agricultural uses). The transformation is governed by the elasticity of transformation ol.