I am the official currency of a small island nation known for its unique biodiversity, including species like the Komodo dragon. My value is pegged to a basket of currencies dominated by the US dollar. Historically, I have experienced periods of high inflation and devaluation, requiring government intervention. My central bank is known for its prudent monetary policies aimed at maintaining stability.

1. My nation is located in Southeast Asia.
2. Tourism is a key contributor to my nation's economy, particularly eco-tourism.
3. My currency code starts with 'IDR'.
4. My nation is the world's largest archipelago.