China’s economy has struggled in recent months amid a depressed level of consumer confidence and a devastating housing bust coupled with weak credit demand. Late in September—just after the U.S. Federal Reserve announced its first federal funds rate cut in several years—the People’s Bank of China unveiled a three-part monetary stimulus program to reduce reserve requirement ratios (the amount of cash banks are required to keep on hand), mortgage rates and down payment requirements, and more. Some economists view monetary easing of this kind as limited in its potential impact during an economic …