MacKinnon argues that (while correcting the trade imbalance by American consumers increasing savings over time and becoming frugal), the stable exchange rate for the yuan and the dollar helps global economic growth by making it possible for China to engage in fiscal stimulus beyond the half trillion dollars it plans for 2009. From the Chinese point of view anchoring the yuan to the dollar at a stable exchange rate help China's internal price level. After the inflation rate exploded to 20% in 1993-95, the fixed rate anchor helped China regain price stability. The China stimulus in his words is most effective with a stable exchange rate.