Damage Control Econometrics: Functional Specification and Pesticide Productivity
通过不同函数设定估计农药生产率，发现实证研究中农药边际产品价值过高的原因可能不在于函数形式。
Abstract Empirical studies of pesticide productivity have often concluded that the value of marginal product of pesticide exceeds marginal factor cost despite anecdotal and other evidence to the contrary. This article presents estimates of pesticide productivity derived from alternative functional specifications of pesticide involvement in production. Results suggest that explanation of the magnitude of pesticide productivity estimates obtained in empirical studies may lie somewhere other than with functional specification.