USD/SGD

USD (US dollar)
Currency unit of the United States of America, Salvador and Marshall Islands. The main world’s reserve currency.
Issued by: Federal Reserve System (Fed)
Price dynamics depends on the interest rates of Fed, inflation and growth rates of the USA.

SGD (Singapore dollar)
Currency unit of Singapore.
Issued by: Monetary Authority of Singapore 
Price dynamics depends on the interest rates of the Monetary Authorities of Singapore, inflation and growth rates of the country.