Currency

The Japanese issued banana money as their main currency since Straits currency became rare. The Japanese instituted elements of acommand economy in which there were restrictions on the demand and supply of resources, thus creating a popular black market. The "banana currency" started to suffer from high inflation and dropped drastically in value because the authorities would simply print more whenever they needed more money; consequently the black market often used Straits currency.

Source: http://en.wikipedia.org/wiki/Japanese_occupation_of_Singapore (Date accessed: 17 Feb 13)

Banana Notes