It should go almost without saying that China’s ability to maintain its current exchange rate regime matters.
The yuan has been more less stable against the CFETS basket since last July. If the current peg breaks, China will struggle to avoid a major overshoot of its exchange rate.
Christopher Balding recently has argued that the fall in the dollar (on say the Fed’s dollar index) in 2017 is more or less the same as the yuan’s depreciation against the basket—which would make China’s exchange rate regime now more a pure peg against the dollar rather than a true basket peg. Hence the lack of movement against the dollar in past few weeks. Maybe. I though am inclined to think that the yuan’s depreciation against the basket this year just undid the upward drift against the basket that came when the dollar appreciated last year, and China is still aiming to keep the currency more or less stable against the basket, not stable against the dollar. Time will tell.
Right now, the exact nature of China’s peg now matters less than China’s ability to maintain some kind of peg, and thus to avoid a sharp depreciation. If there is a depreciation, either the world will absorb a new wave of Chinese exports—a 10 percent real effective exchange rate depreciation should raise China’s real trade balance by about 1.5 percent of China’s GDP, or by roughly $180 billion (using this IMF study as a baseline for the estimate, it is summarized here)—or a wave of protectionist action will limit China’s export response, and in the process threaten the global trading rules.* Neither is a good outcome.
The data for the next few months will be critical. China does seem to have tightened its outflow controls—despite the official denials. FDI outflows certainly have slowed. Hopefully the screws will be placed on a few other categories of outflows—there are plenty of categories in the balance of payments that show a buildup of foreign assets that, in my view, should be controllable. The rise in Chinese bank loans to the world, for example.
I also still think the yuan’s movement against the dollar is an important driver of outflows, so a sustained period of stability in the yuan’s exchange rate versus dollar—whether because the broad dollar is falling and that means the yuan needs to rise to maintain a basket peg, or simply because China starts to prioritize stability versus the dollar—should lead to a reduction in pressure.** Finally China does seem to be tightening its domestic policy, at least a bit. Higher money market rates should also help support the yuan.
The proxies for intervention for January do suggest some reduction in pressure in January—though pressure by no means entirely went away.