NBER Publications by Yi Sun

This paper studies the degree to which Emerging Markets (EMs) adjusted to the global liquidity crisis by drawing down their international reserves (IR). Overall, we find a mixed and complex picture. Intriguingly, only about half of the EMs relied on depleting their international reserves as part of the adjustment mechanism. To gain further insight, we compare the pre-crisis demand for IR/GDP of countries that experienced sizable depletion of their IR, to that of courtiers that didn’t, and find different patterns between the two groups. Trade related factors (trade openness, primary goods export ratio, especially large oil export) seem to be much more significant in accounting for the pre-crisis IR/GDP level of countries that experienced a sizable depletion of their IR in the first phase of...

This paper evaluates the sustainability of large current account imbalances in the era when the Chinese GDP growth rate and current account/GDP exceed 10%. We investigate the size distribution and the durability of current account deficits during 1966-2005, and report the results of a simulation that relies on the adding-up property of global current account balances. Excluding the US, we find that size does matter: the length of current account deficit spells is negatively related to the relative size of the countries' GDP. We conclude that the continuation of the fast growth rate of China, while maintaining its large current account/GPD surpluses, would be constrained by the limited sustainability of the larger current account deficits/GDP of countries that grow at a much slower rate. Co...