container ship
Media playback is unsupported on your device
Video

Does drop in key shipping index predict global slowdown?

Before the world fell into recession in 2008 there was one area of the global economy that gave a warning signal - the shipping industry.

The key measure used by industry to track freight rates is the Baltic Dry Index, which historically has been seen as a great forecaster of global economic demand.

However it has lost half its value this year - so should we be worried?

Jeannie Joye reports.

Go to next video: Onboard huge container ship