the brunei national dollar (bnd) is pegged at the same value to which currency
Brunei dollar Under a Currency Interchangeability Agreement in 1967, the Brunei dollar is interchangeable with the Singapore dollar at par. As such, the Brunei dollar is accepted in Singapore as "customary tender"; likewise, the Singapore dollar is accepted for payments in Brunei.[1]
Fixed exchange-rate system In the 21st century, the currencies associated with large economies typically do not fix or peg exchange rates to other currencies. The last large economy to use a fixed exchange rate system was the People's Republic of China which, in July 2005, adopted a slightly more flexible exchange rate system called a managed exchange rate.[2] The European Exchange Rate Mechanism is also used on a temporary basis to establish a final conversion rate against the Euro (â‚¬) from the local currencies of countries joining the Eurozone.