SHANGHAI, CHINA - MARCH 17: (CHINA OUT) Potential buyers view models of new buildings at a real estate fair on March 17, 2005 in Shanghai, China. China's central bank, the People's Bank of China, has tightened control over real estate loans, setting a base lending rate at 5.51 percent for housing loans of more than five years, as part of steps to slow the overheating sector. (Photo by China Photos/Getty Images)
