This new form of imbalance began to develop in part due to the increasing practice of emerging economies, principally China, in pegging their currency against the dollar, rather than allowing the value to freely float. The resulting state of affairs has been referred to as Bretton Woods II. According to Alaistair Chan, "At the heart of the imbalance is China's desire to keep the value of the yuan stable against the dollar. Usually, a rising trade surplus leads to a rising value of the currency. A rising currency would make exports more expensive, imports less so, and push the trade surplus towards balance. China circumvents the process by intervening in exchange markets and keeping the value of the yuan depressed."
