Exact calibration of programming models of agricultural supply against exogenous supply elasticities
提出一种方法,精确校准二次规划农业供给模型,使其符合外生的自身价格供给弹性,并推导了校准问题有解且唯一的条件。
We develop a methodology to exactly calibrate quadratic programming models of agricultural supply against exogenous own-price supply elasticities. We show that calibration is only possible against certain sets of supply elasticities. For the case where one constraint is binding and the matrix of quadratic coefficients is diagonal, we derive the necessary and sufficient condition under which the calibration problem has a solution, and prove that it is then unique. We propose a general procedure to obtain implied elasticity equations in models of input allocation, and apply it to the constant-elasticity-of-substitution model with land constraint. Oxford University Press and Foundation for the European Review of Agricultural Economics 2010; all rights reserved. For permissions, please email journals.permissions@oxfordjournals.org, Oxford University Press.