China never was going to transition from one of the most heavily managed currencies in the world to a free float overnight. The critical question always has been how China is going to manage its currency, not whether China will manage its currency. The “market” in China has effectively been a bet on where the People’s Bank of China (PBOC)—and its various masters—wanted the currency to go. The reform last August did not change that.
And China made its task more difficult last August by trying to get rid of one of its tools for managing market expectations—the daily fix of the level for yuan against the dollar, which in theory, though rarely in practice, sets the yuan’s daily trading band—precisely when it moved to destabilize market expectations. Both the spot (the “market” price for China’s currency) and the fix (the PBOC’s reference rate) had been remarkably stable in the three to four months prior to China’s August currency reform. Depreciating the fix to the weaker spot price sent a signal, even if the actual initial move was rather small. In a different world, it would be interesting to game out what might have happened had China guided the spot up toward the fix first. Signals matter.
OK, glad I got that off my chest.
Last week’s well-sourced Wall Street Journal story on the PBOC was interesting to me for its information on the domestic politics of the Chinese currency, not for the news that China’s currency is “back under tight government control.” For those who like stories on China’s internal currency politics, I suspect it is up there with the Reuters story from last August highlighting the political pressures on the PBOC.
And it raises one of the most critical ongoing questions in the global economy: what has driven large-scale Chinese reserve sales?
There are two theories.