英文文献：Applying regression quantiles to farm efficiency estimation-应用回归分位数估算农业效率
英文文献作者：Kaditi, Eleni A.,Nitsi, Elisavet I.
英文文献摘要：
This article is concerned with the methodological question of frontier production functions estimation for agriculture, and the appropriateness of regression quantiles, as a useful semi-parametric approach. Better insights are reached using the proposed methodology that provides robust farm efficiency scores estimates. Using the 2007 Farm Accountancy Data Network (FADN) data for Greece, analysis shows that the distribution of efficiency scores is closer to normality when employing regression quantiles, while underestimation of efficiency obtained by other parametric or deterministic methods based on the conditional mean can be avoided. The results further suggest that government support aimed at enhancing farms viability should be directed towards payments decoupled from output or prices, as well as rural development payments that affect productivity in a uniform way.

摘要本文讨论农业前沿生产函数估计的方法问题，以及回归分位数作为一种有用的半参数方法的适宜性。使用所提出的方法可以获得更好的见解，该方法提供了可靠的农业效率评分估计值。使用2007年希腊农场会计数据网络(FADN)数据，分析表明，当使用回归分位数时，效率分数的分布更接近正态分布，而通过其他参数法或基于条件均值的确定性方法获得的效率的低估可以避免。研究结果进一步表明，旨在提高农场生存能力的政府支持，应指向与产出或价格脱钩的支出，以及以统一方式影响生产率的农村发展支出。