A Fully Calibrated Generalized Constant‐Elasticity‐of‐Substitution Programming Model of Agricultural Supply
提出一种方法，利用广义常替代弹性生产函数，精确校准受土地约束的农业供给规划模型，使其能复制参考配置并匹配外生供给弹性，且解唯一。
This article provides a methodology to exactly calibrate land‐constrained programming models of agricultural supply against supply elasticities using generalized constant‐elasticity‐of‐substitution, crop‐specific production functions. We formally derive the necessary and sufficient conditions under which the model can replicate a reference allocation while displaying crop supply responses consistent with exogenous information on supply elasticities. When it exists, the solution to the exact calibration problem is unique. Subject to a caveat, the proposed specification is shown to be more flexible with respect to calibration than the quadratic specification that has been used extensively in policy models based on positive mathematical programming.