Answer:
The answers are : Stable financial system; Strategic location; High literacy rate.
Step-by-step explanation:
Singapore is a small island, highly populated country without much natural resources and little resources are paid to agricultural sector and energy sector thus lack of self-sufficiency in regard to water, food (due to limited land, lack of water supply and high labor cost). Currently, more than 40% of the country's water consumption are exported from Malaysia.
However, thanks to its strategic location lying in the center of the trade flow between the America, Europe, Middle East - Africa and Asia and the heart of Asia; its stable financial system which is one of the financial centers of Asia and the world due to its pretty open economy; its highly-educated citizens ( according to UNESCO Singapore literacy rate has been going up from nearly 83% in 1980 to more than 97% in 2018), the country is among one of the most prosperous countries in the world.