Long-term perspective on currencies and central bank policies

I was doing some house cleaning, tagging old entries and came across something I wrote in 2005 on central bank policies:

On a related note, foreign CBs will not turn net sellers of dollar assets. They will stop adding to USD reserves which still creates a substantial problem for U.S. interest rates. The markets will continue testing the CBs' appetite for dollars until we see real policy changes and a market determined equilibrium.

This referred to the US dollar but the underlying logic still applies to this week's scare regarding China turning seller of Euro assets.  China has deep pockets and very little interest in adding to currency instability.  The status quo (Yuan pegged at sub-market rates to stimulate Chinese exports) has done well by them and while it can't go on forever now would be a shockingly poor time for a drastic change.  Why would they do this in the midst of speculative fervor to short the Euro and a general panic regarding European assets?

My 2005 self went on to make the following predictions:

There will be some sort of market event with the most likely candidates being housing and interest rates.

This market event will ultimately require international cooperation (G7, G10). It may take a series of trials (maybe a series of crises) by various CBs and governments but eventually they will need to coordinate policy. The world will need to decide how to handle the issue of the weakening dollar as its main reserve currency.

On a related note, foreign CBs will not turn net sellers of dollar assets. They will stop adding to USD reserves which still creates a substantial problem for U.S. interest rates. The markets will continue testing the CBs' appetite for dollars until we see real policy changes and a market determined equilibrium.

Unemployment seems like the best indicator of how hard or soft the landing is in the real economy. Below the June '03 high of 6.3% seems like a good definition of a soft landing for the U.S.[The main question being discussed was whether the US was whether the Fed hiking cycle was leading up to a soft landing.]

The U.S. current account deficit will get worked off through the growth of emerging market consumption rather than U.S. economic contraction. These emerging economies are the logical target for the world's investment dollars so once the market regains control of capital distribution they should see some benefits.

While this was a useful high level map, in the end it mostly helped me to avoid risks.  The policy coordination I expected has yet to materialise and instead it is a dog eat dog world of competitive currency devaluations.  This makes a fertile (read volatility swings) ground for trading, especially in currencies.  I expect this will continue until central bank coordination occurs enabling debt-heavy importing countries to start paying off their creditors.