Universidad de Valencia, Dpto. Economía Aplicada II, Avda. dels Tarongers s/n, 46022 Valencia, Spain.
J Environ Manage. 2011 Apr;92(4):1154-64. doi: 10.1016/j.jenvman.2010.11.025. Epub 2010 Dec 28.
This paper assesses farming eco-efficiency using Data Envelopment Analysis (DEA) techniques. Eco-efficiency scores at both farm and environmental pressure-specific levels are computed for a sample of Spanish farmers operating in the rain-fed agricultural system of Campos County. The determinants of eco-efficiency are then studied using truncated regression and bootstrapping techniques. We contribute to previous literature in this field of research by including information on slacks in the assessment of the potential environmental pressure reductions in a DEA framework. Our results reveal that farmers are quite eco-inefficient, with very few differences emerging among specific environmental pressures. Moreover, eco-inefficiency is closely related to technical inefficiencies in the management of inputs. Regarding the determinants of eco-efficiency, farmers benefiting from agri-environmental programs as well as those with university education are found to be more eco-efficient. Concerning the policy implications of these results, public expenditure in agricultural extension and farmer training could be of some help to promote integration between farming and the environment. Furthermore, Common Agricultural Policy agri-environmental programs are an effective policy to improve eco-efficiency, although some doubts arise regarding their cost-benefit balance.
本文使用数据包络分析（DEA）技术评估农业生态效率。为坎波斯县雨养农业系统中的西班牙农民样本计算了农场和环境压力特定层面的生态效率得分。然后使用截断回归和自举技术研究了生态效率的决定因素。我们通过在 DEA 框架中评估潜在环境压力降低时包含有关松弛的信息，为该研究领域的先前文献做出了贡献。我们的结果表明，农民的生态效率非常低，不同特定环境压力之间几乎没有差异。此外，生态效率与投入管理中的技术效率密切相关。关于生态效率的决定因素，我们发现受益于农业环境计划以及接受过大学教育的农民的生态效率更高。关于这些结果的政策含义，农业推广和农民培训方面的公共支出可能有助于促进农业与环境的融合。此外，共同农业政策的农业环境计划是提高生态效率的有效政策，尽管对其成本效益平衡存在一些疑问。
