How undervalued is China's currency given its current account surplus?
Core argument: China's reported current account surplus of roughly 4% of GDP sits 3 percentage points above the IMF's estimated norm, implying a currency undervaluation of roughly 20% using the IMF's own calculations.
China’s current account surplus is now reported to be around 4% of GDP—or 3 percentage points higher than what the IMF estimates it should be. That works out, using the IMF’s own calculations, to an undervaluation of roughly 20%. If adjustments are made for China’s surging gold imports (1.5% of GDP in Q2) and its obviously misreported investment income balance (China reports a deficit of $125 billion on $4 trillion in net assets, something that no one—the IMF included—can explain) the current account surplus would rise to around 6 percent of GDP and the estimated undervaluation would increase to between 30 and 35%. The upward adjustment to China’s surplus should not be controversial: the customs surplus excluding gold is now an incredible 7% of China’s GDP, the services deficit is only 1% of GDP and a long history of surpluses should lead to a positive net foreign asset position and thus external investment income (as in Korea, Taiwan and Japan).

