According to the World Economic Forum (WEF), fragile economies, unsustainable debt and environmental damage are the big risks facing the global economy in 2013.
But other factors also play a part, such as mood.
Lee Howell, managing director at WEF, takes a look at the global mood going into this year's event.
"The global mood is resilient dynamism... at one level you have to be resilient because there is going to be another shock... we live in a very interconnected world," he told Today business presenter Simon Jack.
Referring to dynamism he said: "We now need leaders to go out and not really play defence, but offence."
"To deal with the risks you have to take risks," he added.
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