White-hot panic about global trade may have eased a bit in recent weeks but the economic outlook is no easier to call for the US Federal Reserve as it prepares for a meeting on interest rates this week.

While the United States and China declared another truce and odds fell that Britain will crash out of the European Union, any improvements are as liable to be suddenly dashed as lead to success.

Amid the uncertainty, Fed policymakers appear ready to approve the third interest rate cut in a row as they grow more worried about the future, some daring even to use the dreaded word "recession."

Fed Chairman Jerome Powell this month reiterated his pledge to do what it takes to keep the US economy afloat.

And his number two, Vice Chairman Richard Clarida, in a recent speech pointed to global growth estimates that "continue to be marked down."

Both are signals more help is likely on the way. And while some economists question whether another move would be necessary or effective, the two-day meeting Tuesday and Wednesday is held amid increasing signs central bankers are on edge.

In a London speech, James Bullard, the St. Louis Fed's aggressively dovish president, displayed a forecast chart bathed in red, reflecting more downward revisions to the growth projections for the United States, the euro area, Britain and China.

Federal Reserve Board Chairman Jerome Powell says the central bank will do what it takes
Federal Reserve Board Chairman Jerome Powell says the central bank will do what it takes GETTY IMAGES NORTH AMERICA / WIN MCNAMEE

"The key risk is that this slowing may be sharper than anticipated," he told a conference of central bankers.

And minutes of the Fed's policy meeting last month said a "clearer picture" is emerging of how the trade war could drive the United States into a downturn.

Lost export markets, weak demand and uncertainty could lead to a drawn-out slump in business investment, threatening hiring, consumer spending and the wider economy, according to the meeting's minutes.

That cautious sentiment is apparent in comments from many American businesses in the Fed's "beige book" report, and corporate earnings this month have confirmed it: Ford, Boeing, Caterpillar and 3M have all said revenues suffered from falling sales in China.

The result: Futures markets overwhelmingly predict Powell will announce another cut in the benchmark borrowing rate on Wednesday in light of the darkening economic picture.

A 'Red Bull' economy

American consumers have been the star of the show this year, bearing the economy on their shoulders like Atlas while manufacturing, agriculture, business investment and exports have all withered.

But recent data have been a tad grim there too: annual consumption growth in August was the weakest in eight months, retail sales sank in September along with consumer confidence as word of looming tariffs spread.

Chart showing US Federal Reserve interest rates, inflation and unemployment rates since 2015
Chart showing US Federal Reserve interest rates, inflation and unemployment rates since 2015 AFP / Gal ROMA

So are we headed for a recession?

Not clear, economists say.

"As I've said in the past, this is a Red Bull economy. If you're a big, strong lunk, you can take a lot of caffeine and power through," Adam Posen, president of Peterson Institute for International Economics, told reporters.

"Even if at some point you're going to crash, and even if at some point you're raising your odds of a heart attack, the odds are still small," he added.

"The US can, with bad fiscal policy and extreme measures, keep going."

And some voices on the Fed also say more rate cuts are not necessary, and could create more dangers.

The normally dovish Charles Evans of the Chicago Fed said this month that interest rate policy is already "in a good place" as it is.

And both Esther George of Kansas City and Eric Rosengren of Boston have resisted the last two rate cuts, warning that keeping rates low for too long comes at a cost, encouraging corporate America's dangerous debt binge, and threatening to make an eventual economic downturn even more destructive.

Meanwhile, with unemployment at half-century lows, consumers should be able to go on spending.

"My own outlook for the economy does not call for a monetary policy response," George said in a speech -- but she noted that her view could change if consumer spending weakens further.

Economist Joel Naroff cautioned that the Fed might not be able to do anything to counteract Trump's trade war.

"The simple reality is that interest rates are not going to solve the problem that's causing the risks," he told AFP.

"If they implement a 25 percent tariff on Chinese goods, zero percent (interest rate) is not going to help," he added.

"Interest rates do not solve political problems."