土地成本与土地密集型农产品国际竞争力——土地经营规模的中介效应  

Land Cost and International Competitiveness of Land Intensive Agricultural Products:The Mediating Effect of Land Management Scale

作　　者：肖亚成[1,2] 曹壹帆 肖桑梦 XIAO Yacheng;CAO Yifan;XIAO Sangmeng

机构地区：[1]西南大学经济管理学院,重庆北碚400715 [2]西南大学乡村振兴战略研究院,重庆北碚400715

出　　处：《深圳社会科学》2023年第2期53-66,共14页Social Sciences in Shenzhen

摘　　要：在农产品贸易逆差不断扩大、国际竞争力不断减弱的背景下,本文聚焦于土地成本与农产品国际竞争力,在梳理国内外相关文献的基础上,深度剖析土地成本与农产品国际竞争力之间的关系。运用2004-2018年中国省级层面的数据,检验了土地成本与农产品国际竞争力的关系及其作用机制。实证结果表明,土地成本与农产品国际竞争力呈“倒U型”关系。分类别讨论发现,土地成本对土地密集型农产品国际竞争力的影响作用显著,而对于劳动密集型农产品国际竞争力的影响并不显著。在通过替换被解释变量、增加控制变量进行稳健性检验,以及运用PSMOLS、推后被解释变量的方法处理可能存在的内生性问题后,发现土地成本对土地密集型农产品国际竞争力的影响依然稳健。作用渠道检验表明,对于土地密集型农产品而言,土地成本变化通过影响农户的经营规模进而对农产品国际竞争力产生影响,并且,研究还发现农民的经营规模与农产品国际竞争力也呈“倒U型”关系。在此基础上,本文对2004-2018年土地密集型农产品的成本进行解构,发现土地成本不断上升是土地密集型农产品成本上升的重要驱动器。结合研究结论,提出利用数字科技推进土地流转,推动土地密集型农产品的适度规模化经营以及推进农业现代化建设的政策建议。Under the background of agricultural trade deficit expanding and international competitiveness weakening, this paper focuses on the cost of land and international competitiveness of agricultural products,on the basis of combing the relevant literature at home and abroad, in-depth analysis of the relationship between land cost and the international competitiveness of agricultural products. This paper empirically tests the relationship between land cost and international competitiveness of agricultural products and its mechanism by using the data of China’s provincial level from 2004 to 2018. The empirical results show that there is an inverted U-shaped relationship between land cost and international competitiveness of agricultural products. It is found that the impact of land cost on the international competitiveness of landintensive agricultural products is significant, while the impact on the international competitiveness of labor-intensive agricultural products is not significant. By replacing the dependent variable and adding the control variable to test the robustness, and using the PSM-OLS and pushing back the dependent variable to deal with the possible endogenous problems, it is found that the impact of land cost on the international competitiveness of land-intensive agricultural products is still robust. The effect channel test shows that for land-intensive agricultural products, the change of land cost affects the international competitiveness of agricultural products by affecting the operation scale of farmers, and this study also finds that the relationship between the operation scale of farmers and the international competitiveness of agricultural products is inverted U-shaped. On this basis, this paper deconstructs the cost of land-intensive agricultural products from 2004 to 2018, and finds that the rising cost of land is an important driver of the rising cost of landintensive agricultural products.Combined with the research conclusion, this paper puts forward the policy recommendations of using

关 键 词：土地成本 农产品 国际竞争力 土地经营规模 中介效应 

分 类 号：F325[经济管理—产业经济]