G20 finance ministers and central bank chiefs meeting in Istanbul said that growth in the global economy remains "uneven" and the recovery "slow", especially in the eurozone and Japan as well as some emerging market economies.
They also warned of the risk of "persistent stagnation" in some leading economies due to "prolonged low inflation alongside sluggish growth."
"We are determined to overcome these challenges" to deliver sustainable growth that can create jobs and encourage inclusiveness, a key target of the Turkish G20 presidency, they vowed in their draft communique.
It said that fiscal policy "has an essential role" in building confidence and sustaining domestic demand, in a prod to some states to drop their insistence on austerity.
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A senior US treasury official, who asked not to be named, said Washington wanted to see countries use all the tools at their disposal -- including fiscal policy -- to boost growth.
The G20 communique said that while the sharp oil price falls will provide some boost to global growth, the implications will be different for oil exporting and oil importing countries.