Columbia International Affairs Online: Policy Briefs

CIAO DATE: 05/2010

New PPP-Based Estimates of Renminbi Undervaluation and Policy Implications

Arvind Subramanian

April 2010

Peterson Institute for International Economics

Abstract

Is there reason to add to the proliferating set of estimates on the extent of renminbi undervaluation (see among others, Bergsten 2010; Cline and Williamson 2008 and 2010; Goldstein and Lardy 2008 and 2009; Frankel 2008; Reisen 2009; and Lee et al. 2008)? Yes, not least because these new estimates: (1) suggest that purchasing power parity (PPP)-based approaches to measuring renminbi undervaluation suggest that China's currency is undervalued by about 30 percent against the dollar and not the 12 percent recently reported (Bajaj 2010); and (2) are closer to and consistent with alternative approaches to estimating renminbi undervaluation.