It depends at what level you want to look at it. If the economies doing well your money is more likely to find productive investments, alternatively the central

It depends at what level you want to look at it. If the economies doing well your money is more likely to find productive investments, alternatively the central bank could increase interest rates to regulate the economy, both would be good for you personally as well as tending to push rates up. My greater point was that exchange rates tend to be self regulating (in this situation), you'd expect it to return to mean rather than get stuck in a feed back loop. This is China though so I have no idea how much they need to heed economic reality.