When the metropolitan scale is recognized, the importance of leading urban areas is even more remarkable. New York City has around 8.4 million people, but the NYC metropolitan area has roughly 25 million people, with an economy estimated at about $1.4 trillion per year.
在大都市规模实现后，领导城市地区的重要性就更加显著了。纽约市拥有约840万人口，但纽约市大都市圈拥有约2500万人，每年经济量高达1.4万亿美元。如果这一大都市圈是一个国家的话，其GDP将位居世界第14位。