The U.S. economy is struggling to grow. The European Union is trying to contain a debt crisis. And, in a case of bad timing, the world's fastest-growing major economy, China, is trying to slow down.
Shanghai has been one of the world's hottest real estate markets, but it's too hot for Chinese officials who are fighting high inflation and what some fear is a housing bubble.
Earlier this year, the Shanghai government tried to slow down real estate sales by restricting people from outside the city from buying more than one property.