详情
China's Current Account and Exchange Rate
We examine whether the Chinese exchange rate is misaligned and how Chinese trade flows respond to
the exchange rate and to economic activity. We find, first, that the Chinese currency, the renminbi
(RMB), is substantially below the value predicted by estimates based upon a cross-country sample,
when using the 2006 vintage of the World Development Indicators. The economic magnitude of the
mis-alignment is substantial -- on the order of 50 percent in log terms. However, the misalignment is
typically not statistically significant, in the sense of being more than two standard errors away from
the conditional mean. Moreover, this finding disappears completely when using the most recent 2008
vintage of data; then the estimated undervaluation is on the order of 10 percent. Second, we find that
Chinese multilateral trade flows respond to relative prices -- as represented by a trade weighted
exchange rate -- but the relationship is not always precisely estimated. In addition, the direction of the
effects is sometimes different from what is expected a priori. For instance, Chinese ordinary imports
actually rise in response to a RMB depreciation; however, Chinese exports appear to respond to RMB
depreciation in the expected manner, as long as a supply variable is included. In that sense, Chinese
trade is not exceptional. Furthermore, Chinese trade with the United States appears to behave in a
standard manner -- especially after the expansion in the Chinese manufacturing capital stock is
accounted for. Thus, the China-US trade balance should respond to real exchange rate and relative
income movements in the anticipated manner. However, in neither the case of multilateral nor bilateral
trade flows should one expect quantitatively large effects arising from exchange rate changes. And, of
course, these results are not informative with regard to the question of how a change in the RMB/USD
exchange rate would affect the overall US trade deficit.