Research on the export competitiveness of Yunnan vegetables based on the diamond model:Taking four major export vegetables including mus-tard greens,lettuce,broccoli and tomato as examples
XU Yanmei
XIANG Mingsheng
Abstract：Based on the data from China Customs and UN Comtrade from 2015 to 2023,this study systematically analyz-es the export competitiveness of Yunnan province's four major vegetable,namely mustard,lettuce,broccoli and tomato,and its influencing factors by using market share(MS),revealed comparative advantage index(RCA)and Porter's Dia-mond Model.The research reveals that Yunnan has a comparative advantage in mustard and lettuce,with RCAs reaching 166.86 and 79.83,respectively,and their MS showing an upward trend.However,the export competitiveness of broccoli and tomato is relatively weak,and the overall vegetable export value shows a fluctuating downward trend.From the per-spective of the Diamond Model,Yunnan has a unique plateau advantage in primary production factors,but there are obvi-ous shortcomings in advanced factor support,brand influence,market diversification,and industrial chain coordination.Based on these findings,this article proposes accelerating seed industry innovation,building the regional public brand of"Yunnan vegetables",expanding into high-end international markets,and strengthening policy support and regional coop-eration,so as to systematically enhance the competitiveness of"Yunnan vegetables"and provide a Yunnan solution for the high-quality overseas expansion of China's vegetable industry.
Keywords：VegetableYunnanInternational marketMarket competitivenessDiamond model
Publication Date：2026-03-05
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：10( 249-258 )