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Journal of Tea Science ›› 2024, Vol. 44 ›› Issue (3): 526-542.doi: 10.13305/j.cnki.jts.2024.03.006

• Research Paper • Previous Articles    

Study on the Impact of Standards Differences in Pesticide Maximum Residue Limits on the Trade Efficiency of RCEP Members Exporting Tea from China: Based on the Stochastic Frontier Gravity Model

HUO Zenghui1, LIU Chang1, ZHANG Mei2, CHEN Fuqiao3,*, LIU Zhonghua4,*   

  1. 1. College of Economics and Management, China Jiliang University, Hangzhou 310018, China;
    2. College of Economics and Management, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China;
    3. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
    4. Hunan Agricultural University, Changsha 410128, China
  • Received:2023-12-05 Revised:2024-03-25 Online:2024-06-15 Published:2024-07-08

Abstract: Currently, tea trade is facing challenges from technical trade barriers. This study used the standards differences in pesticide maximum residue limits (MRLs) as the entry point to construct The Heterogeneity Index of Trade (HIT) to quantify the specific differences in pesticide MRLs between countries. The stochastic frontier gravity model was used to study the impact of standards differences in pesticide MRLs on the trade efficiency of RCEP members exporting tea from China. The results show that there are differences in the pesticide MRLs standards between China and RCEP members, but overall there is a decreasing trend. The negative differences in pesticide MRLs standards between China and RCEP members will lead to a reduction in the trade efficiency of China's tea exports. The inhibitory effect path is manifested by significantly reducing tea export volume and export unit price. China's pesticide MRLs standard system should be further improved to align with international standards, promote mutual recognition of standards among countries in the RCEP region, and reduce the adverse effects of trade barriers.

Key words: the standards difference in pesticide maximum residue limits (MRLs), tea trade efficiency, stochastic frontier gravity model, heterogeneity index of trade

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