economists scaled back their estimates for global growth to 3.3 percent this year and 3.6 percent next year.
Mr. Cameron has repeatedly rejected calls by the opposition Labour Party and by some economists to scale back austerity measures, arguing that government spending cuts helped Britain keep its borrowing costs low and investor confidence high.
Other economists also scaled back their expectations.
Government budget analysts and private economists were scaling back their forecasts for the federal budget surplus in the coming year, saying it could be $25 billion to $50 billion instead of the $176 billion previously projected.
Other economists say that scale of the bond purchases would not increase the money supply enough to pose an inflation risk.
On a larger scale, economists say the effect of the antismuggling campaign can be gauged by the wild fluctuations in prices and revenues associated with formerly smuggled goods during the last year.
"Obama's team is mainstream and non-ideological but extremely talented".On our one-to-five scale, economists on average give Mr Obama's economic programme a 3.3 and Mr McCain's a 2.2.
But most economists expect a scaling back of bond purchases by the end of the year, and a sizeable number expect reduced buying as early as September.
Economists have been scaling back their fears for how much the shutdown will hit economic expansion after the entire Defense Department was ordered back to work.
Their Matthew Whittaker, chief economist, says: "The scale of mortgage debt in this country is still substantial, even after years of economic downturn, and it could start to look precarious for many households over the coming years.
