早在20世纪80年代中期,长三角就曾进行过建立“上海经济区”的尝试,但失败了。但以都市圈和城市群为核心的圈域经济理念却一直红火到了现在。美国著名经济学家、诺贝尔奖获得者斯蒂格利茨教授将“城市化”列为新世纪中国的第一大挑战。 As early as the mid-1980s, the Yangtze River Delta had tried to establish “Shanghai Economic Zone”, but failed. However, the circle economic concept centered on the metropolitan area and the urban agglomeration has been booming till now. Professor Stiglitz, a famous American economist and Nobel laureate, named “urbanization” as the number one challenge for China in the new century.