Almost every country has their own version of Chinatown and the same as little India. Why? Because these two race has a lot of expat in different country. It all started during the old civilization when they are trading their products until they decided to settled in the country because they think they are doing a good business there. Then Chinatown started. So as little India.
In Manila, Filipino-Chinese are the people who are doing good business these days. Most of the big corporation in the Philippines are owned by Filipino-Chinese businessmen.
