Hong Kong is one of the most densely populated cities in the world. It became a colony of the British Empire after the Opium War in the nineteenth century with a very small population of around 125,500 (Wikipedia 2012b). With the continuous infl ux of Chinese immigrants, the population increased from 530,000 in 1916 to 725,000 in 1925 and to 1.6 million by 1941. Almost all so-called ‘natives’ are predecessors of settled Chinese immigrants. These earlier Chinese immigrants and a small number of non-Chinese immigrants jointly created a miracle to transform Hong Kong from a small fi shing port to an international business centre. Hence, Hong Kong has been described as a heaven of migrants.