My friend Lars Christensen has a good post (video here) on oil prices and Middle East currency regimes (excerpt):
Oops I did it again – this time I talk to my phone about monetary policy in the Gulf States and my suggestion that these countries should peg their currencies to the oil price or a basket of the oil price and the US dollar. This is of course what I have suggested should be termed the Export Price Norm (EPN).
I’m posting this due to a conversation I had yesterday, trying to explain optimal exchange rate policy in the face of a terms of trade shock.
Lars has an older post on the Ringgit as well (here), along with thoughts on monetary policy, price controls and inflation.