What China's economic problems mean for the world

There is a saying that when the United States sneezes, the rest of the world catches a cold. But what happens when China is unwell?

The world's second-largest economy, home to more than 1.4 billion people, is facing a host of problems - including slow growth, high youth unemployment and a property market in disarray.

Now the chairman of the country's heavily indebted real estate developer, Evergrande, has been placed under police surveillance and the company's shares have been suspended on the stock market.

While these issues add up to a major...