With its constant international publicity, Hong Kong has been the most active of the four cities, with its tenacious publicity campaigns promoting it as a financial capital, a city of constant activity, and now as "Asia's World City." By comparison, however, Shanghai has been relatively quiet, even though it has the greatest actual strength for development.
熱衷於國際宣傳的香港，從金融之都、動感之都，一直到亞洲國際都會等自我型塑，動作在四城當中最為積極，相對之下，發展實力最雄厚的上海則顯得低調。