Debt crisis: Cameron to tell euro leaders 'stop tinkering' Mr Cameron, speaking to world leaders, economists and business chiefs at the Davos 2012 World Economic Forum, will warn that competitiveness remains Europe's "Achilles heel," with the single market incomplete, and "unnecessary" measures from Brussels that were burdening businesses and "can destroy jobs." The truth is, we can't afford to wait any longer. Mr Cameron will also call the drive to end the Doha round of world trade talks a failure and tell the European Union to rather explore the possibility of free trade deals with other major trading blocs, such as the US and Africa. Free trade agreements with India, Canada and Singapore must be completed by the end of 2012, he will say. "This is a bold agenda on trade which can deliver tangible results this year, and I am proposing that we start work on it immediately," he will say. All these decisions lie in our own hands. The problems we face are man-made and with bold action and real political will we can fix them. The annual gathering in Switzerland comes amid renewed gloom about the economy after the International Monetary Fund this week downgraded its forecasts for global growth. In Europe the debt crisis rumbles on with Greek debt talks in limbo and Britain facing the prospect of a double-dip recession after the Office of National Statistics on Wednesday reported a 0.2pc contraction in the UK economy in the final quarter of 2011.