农业现代化研究2025，Vol.46Issue(2)：248-259,12.DOI:10.13872/j.1000-0275.2024.1713
生猪良种补贴政策缓解了生猪种业"卡脖子"问题吗?
Does the subsidy policy for improved pig varieties alleviate the"necklace"problem of pig seed industry?Based on the perspective of improved variety level
摘要
Abstract
The pig seed industry is facing the problem of"necklace"and it is of positive significance to discuss the effect of the subsidy policy for improved pig varieties and the mechanism black box that affects the improvement of improved pig varieties.Applying the theoretical analysis and based on a balanced panel data of 30 provinces(districts,cities)from 2007 to 2016,this study empirically explores the influence of pig seed subsidies on pig seed industry by using multi-period double difference model and verifies the mechanism by using intermediary effect model and regulatory effect model.Results show that the subsidy policy for improved pig varieties can effectively alleviate the problem of"necklace"in pig seed industry,and the influence effect shows a dynamic trend of first rising and then falling.Mechanism analysis shows that the improved pig seed subsidy policy can improve the improved pig seed level by improving the technical service level and reducing the transaction cost of improved pig seed technology.In addition,the improved pig seed subsidy policy can reduce the negative impact of disease risk on the improved pig seed level.Heterogeneity analysis shows that the policy effect of pig improved variety subsidy policy is more obvious in areas with lower improved variety,higher pig slaughter scale and medium intensive scale.Therefore,this paper provides the following suggestions:continuing to promote the subsidy policy for improved pig seeds,optimizing the development environment of pig seed industry by taking various measures,and promoting improved seed technology according to local conditions.关键词
生猪/生猪良种补贴/中介效应/调节效应/多期双重差分模型Key words
live pigs/subsidy for high-quality breeding stock of live pigs/mediation effect/moderation effect/multi-period difference-in-differences model分类
经济学引用本文复制引用
王刚毅,贾亦蕾,申玉琢..生猪良种补贴政策缓解了生猪种业"卡脖子"问题吗?[J].农业现代化研究,2025,46(2):248-259,12.基金项目
国家社会科学基金一般项目(22BJY084) （22BJY084）
教育部人文社科一般项目(21YJA790053) （21YJA790053）
海南省热带作物信息技术应用研究重点实验室 2023 年度开放基金项目(ZDSYS-KFJJ-202302).Supported by the National Social Science Foundation of China(22BJY084) （ZDSYS-KFJJ-202302）
the Foundation of Humanities and Social Sciences of Ministry of Education of China(21YJA790053) （21YJA790053）
Hainan Provincial Key Laboratory of Tropical Crops Information Technology Application Research 2023 Open Fund Project(ZDSYS-KFJJ-202302). （ZDSYS-KFJJ-202302）
