The validity of parametric link functions in discrete choice models of food purchases: empirical evidence from Greek microdata
利用希腊家庭食品购买微观数据,检验了离散选择模型中参数连接函数的分布假设,发现高拒绝率,尤其是probit模型,表明测试参数连接函数的计算成本是合理的。
Parametric discrete choice models are used in agricultural economics to correct outcome equations for selectivity bias. This note assesses empirically the distributional assumptions underlying these models using the HH-test and microdata on food purchases by Greek households. High rates of rejection are encountered, especially for the probit model, suggesting that the computational cost involved in testing parametric link functions is justified. Copyright 2002, Oxford University Press.