农业全球价值链的嵌入位置与增值能力关系研究

Research on the Relationship between Embedding Position of Agriculture in GVCs and Value-adding Capacity

借鉴Fally et al.(2013)的研究方法,以世界投入产出数据库相关数据为研究样本,对2000—2014年间43个国家(地区)农业全球价值链长度进行测算与分解,并测算出相应农业上游度水平,同时实证检验了农业嵌入全球价值链的位置与其增值能力的关系。结果表明,农业增值能力与农业上游度水平呈"倒U型"关系,农业技能劳动投入比例上升,有利于提升农业增值能力,而农业价值链长度延伸则会制约农业增值能力提升。

Firstly,through calculation of the length of agricultural GVCs and its decomposition,the paper discusses agricultural production stages of 43 countries from vertical perspective. Secondly,the paper calculates agricultural upstreamness in order to make clear it＇s supporting to other industries and variation of embedded position in global value chain. Finally,the relationship betw een embedding position of agriculture in GVCs and value-adding capacity is tested based on TSLS method. The results show that there is an inverted U shaped relationship betw een value added capability and upstreamness of agriculture. The rise of mid-skilled labor can increase value added capability of agriculture,w hile the extension of agricultural value chain show s restriction to it.