在中国经济的版图上，存在着两大“三角经济”：长江三角洲和珠江三角洲。两大“三角经济”对中国经济发展及其走势具有举足轻重的影响。它们在中国经济中的地位及影响力也随着各自约束条件的变化而变迁着。珠江三角洲在改革开放之前的经济基础比长江三角洲要弱。１９７８年， There are two major “triangular economies” in the Chinese economy: the Yangtze River Delta and the Pearl River Delta. The two major “triangular economies” have a pivotal impact on China’s economic development and its trend. Their status and influence in the Chinese economy also change with their respective constraints. The economic foundation of the Pearl River Delta before the reform and opening up was weaker than that of the Yangtze River Delta. In 1978,