基于2004—2018年生猪养殖的省级宏观数据，使用SFA方法下的三种经典模型和刀切模型平均法对生猪养殖的生产函数和全要素生产率进行了估计，并利用增长核算表全面准确地核算了生猪养殖产出增长中各投入要素及其全要素生产率的贡献大小。研究发现：在样本考察期内，小规模、中规模、大规模生猪养殖产出的年均增长速度为1.440%、1.437%和1.472%。在3种生猪养殖模式中，投入要素是驱动生猪养殖产出增长的首要因素，其中，尤以饲料投入的贡献最大；而全要素生产率是驱动生猪养殖产出增长的次要因素，且贡献主要来自效率的提升。此外，随着生猪养殖规模的增大，投入要素对产出增长的贡献在逐渐减小，而全要素生产率对产出增长的贡献在逐渐扩大。

Based on the provincial macro data of pig breeding from 2004 to 2018, the production function and total factor productivity of pig breeding have been estimated by using three classical models under the SFA method and jackknife model averaging, and the contribution of various input factors and total factor productivity in the growth of pig breeding output has been calculated fully and accurately by using the growth accounting table. The results show that the average annual growth rates of small-scale, medium-scale and large-scale pig breeding output were 1.440%, 1.437% and 1.472% respectively during the sample investigation period. For all the three pig breeding modes, the input factors are the primary factor driving the growth of pig breeding output, among which the feed input makes the biggest contribution; the total factor productivity is the secondary factor promoting the growth of pig breeding output, and the contribution mainly comes from efficiency improvement. With the increase of pig breeding scale, the contribution of input factors to output growth shrinks gradually while the contribution of total factor productivity to output growth rises gradually.

F326.3

国家社会科学基金重点项目（20AJL010）