Investor Marc Faber said China’s economy will slow and possibly “crash” within a year as declines in stock and commodity prices signal the nation’s property bubble is set to burst.

The Shanghai Composite Index has failed to regain last year’s high while industrial commodities and shares of Australian resource exporters are acting “heavy,” Faber said. The opening of the World Expo in Shanghai last week is “not a particularly good omen,” he said, citing a property bust and depression that followed the 1873 World Exhibition in Vienna.