Currencies are very unstable across the world currently (since late 2007). One thing I notice is that when currencies move in one direction, retailers put up their prices quickly, but when currencies move the other way, prices are remarkably slow to go down.

Anybody else got some local Big Mac price knowledge to share?

So the UK Big Mac is more than twice the price (rough equivalent of 420 yen) for exactly the same thing.

Sean.