Estimating regional-level input demand for French agriculture using a translog production function
使用超越对数生产函数估计法国农业的区域级投入需求，发现投入不可分离，劳动与资本、土地与劳动存在替代关系，而资本与土地为互补关系。
The purpose of this paper is to estimate a system of input demand responses for French agriculture, supposed to be in static equilibrium with respects to all inputs. A translog production function with regional dummies is specified. The adjusted model is well-behaved for a large region in the input space and therefore allows general conclusions. First input separability is rejected. The technical separability of materials for all primary inputs is quite large. Moreover there is a substitutability relationship (except for intensive livestock farming) between labour and capital, land and labour but capital and land are complements.