Stock markets tumbled, the pound crashed against the dollar and oil prices slumped Friday on growing recession fears after central banks this week ramped up interest rates to fight decades-high inflation.
With price rises showing no solid sign of letting up, monetary policymakers have gone on the offensive, warning that short-term hits to economies are less painful than the long-term effects of not acting.
The Federal Reserve's decision Wednesday to lift borrowing costs by 0.75 percentage points for a third successive meeting was followed by a warning that more big rises were in the pipeline and that rates would likely come down only in 2024.
There were similar moves by central banks in other countries including Britain, Sweden, Norway, Switzerland, the Philippines and Indonesia -- all pointing to a dark outlook for markets.
Wall Street extended losses Friday while European equities sank in afternoon deals and Asia finished lower.
"A negative end to the week in Asia, and Europe has quickly followed as the prospect of much more tightening and a recession weighs on sentiment," said Craig Erlam, analyst at trading platform OANDA.
In a sign that recession expectations are rising, the 10-year US Treasury yield jumped to its highest level in a decade.
The UK 10-year yield struck an 11-year high on Friday.
The British pound tumbled to a 37-year low under $1.10 as a tax-cutting budget sparked public finance concerns while recession fears mounted.
"Equity markets are also plunging on concerns that this (UK) package could further push inflation even higher, and thus make it more difficult to bring back down," said Michael Hewson, chief market analyst at CMC Markets UK.
"Sterling is in the firing line as traders are turning their backs on all things British. There is a creeping feeling the extra government borrowing that is in the pipeline will severely weigh on the UK economy," added David Madden, market analyst at Equiti Capital.
In the eurozone, recession fears deepened as data showed its economic activity fell once again in September.
The S&P eurozone PMI dropped to 48.2 in September -- with a score under 50 representing economic contraction.
The euro hit a new two-decade low at $0.9751.
"A eurozone recession is on the cards as companies report worsening business conditions and intensifying price pressures linked to soaring energy costs," said Chris Williamson, chief business economist at S&P Global Market Intelligence.
He added that falling UK business activity this month indicates that the British economy is likely already in recession.
Recession fears also caused oil prices to fall, with the main US contract, WTI, falling below $80 for the first time since January.
Traders were keeping a close eye as well on developments following the Japanese finance ministry's intervention to support the yen, after it hit a new 24-year low of 146 against the dollar.
The first such intervention since 1998 helped strengthen the yen but it remained above 140.
Analysts warned the move was unlikely to have much long-term impact and the yen remained vulnerable owing to the Bank of Japan's refusal to tighten policy -- citing a need to boost the economy.
- Key figures at around 1530 GMT -
New York - Dow: DOWN 1.52 percent at 29,618.21 points
London - FTSE 100: DOWN 1.97 percent at 7,018.60 (close)
Frankfurt - DAX: DOWN 1.97 percent at 12,284.19 (close)
Paris - CAC 40: DOWN 2.28 percent at 5,783.14 (close)
EURO STOXX 50: DOWN 2.3 percent at 3,355.97
Hong Kong - Hang Seng Index: DOWN 1.2 percent at 17,933.27 (close)
Shanghai - Composite: DOWN 0.7 percent at 3,088.77 (close)
Tokyo - Nikkei 225: Closed for a holiday
Pound/dollar: DOWN at 1.0926 from $1.1252 Thursday
Euro/dollar: DOWN at $ 0.9727 from $0.9839
Euro/pound: UP at 89.00 pence from 87.40 pence
Dollar/yen: UP at 143.17 yen from 142.35 yen
West Texas Intermediate: DOWN 4.49 percent at $79.00 per barrel
Brent North Sea crude: DOWN 4.14 percent at $86.32 per barrel
© Agence France-Presse
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