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对 Box–Tidwell 灵活函数形式施加一次齐次性AI 解读

The authors consider two forms of the Box-Tidwell cost function, which uses the increasingly popular Box-Cox metric. If the dependent variable is the logarithm of cost, the function violates the regularity condition of homogeneity in factor prices, globally and locally. If cost is transformed by the Box-Cox metric, global homogeneity requires highly restrictive parameter constraints such that the model is no longer flexible, while local homogeneity is satisfied at only the…

对Box–Tidwell灵活函数形式施加一次齐次性AI 解读

The authors consider two forms of the Box-Tidwell cost function, which uses the increasingly popular Box-Cox metric. If the dependent variable is the logarithm of cost, the function violates the regularity condition of homogeneity in factor prices, globally and locally. If cost is transformed by the Box-Cox metric, global homogeneity requires highly restrictive parameter constraints such that the model is no longer flexible, while local homogeneity is satisfied at only the…