Picture used for illustration.

Asian stock markets rose Monday after the chief U.S. central banker expressed optimism that the American economy might start to recover this year from the coronavirus pandemic.

That came despite Japan’s announcement that its economy contracted in the first quarter and the Trump administration’s decision to step up a technology conflict with Beijing by tightening restrictions on Chinese tech giant Huawei.

Investors appear to be looking past the outbreak to a recovery despite rising infection numbers in the United States, Brazil and some other countries. Forecasters warn that the latest market buoyancy might be premature and a return to normal could be some way off.

Market sentiment "will likely remain fragile” as investors weigh government stimulus plans against rising U.S.-Chinese tension and poor economic data, said Riki Ogawa of Mizuho Bank in a report.

The Shanghai Composite Index rose 0.7% to 2,888.78 and Tokyo’s Nikkei 225 gained 0.6% to 20,158.20. The Hang Seng in Hong Kong advanced 0.4% to 23,886.13.

The Kospi in Seoul was 0.5% higher at 1,936.13 and Australia’s S&P-ASX 200 gained 1.1% to 5,464.20. India's Sensex opened down 3.1% at 30,132.92. Markets in New Zealand and Singapore also advanced.

Federal Reserve Chair Jerome Powell expressed optimism Sunday that the U.S. economy can begin to rebound in the second half, assuming the coronavirus doesn’t erupt in a second wave, but said a full recovery won’t likely be possible before the arrival of a vaccine.

In an interview with CBS’s "60 Minutes,” Powell said the U.S. economy was fundamentally healthy before the virus forced widespread business shutdowns and tens of millions of layoffs. Once the outbreak has been contained, he said, the economy should be able to rebound "substantially.”

The U.S. downturn was the result of an external event instead of problems such as the financial instabilities that led to the 2008 crisis, which may mean "we can get back to a healthy economy fairly quickly,” Powell said. 

The Wall Street sign is pictured at the New York stock exchange. Reuters

"Expect policymakers to strike a more cautious tone, emphasizing that we are not out of the woods yet and that more will be more stimulus in the offing,” Stephen Innes of AxiCorp said in a report.

Meanwhile, Japan’s government reported Monday the world’s third-largest economy contracted by 0.9% in the three months ending in March compared with the previous quarter.

That "sharp fall” suggests there is "much worse to come” in the current quarter, Tom Learmouth of Capital Economics said in a report.

On Wall Street, U.S. stocks turned in their biggest weekly loss in nearly two months.

The S&P 500 index rose 11.20 points to 2,863.70. It ended down 2.3% for the week. The Dow Jones Industrial Average gained 0.3% to 23,685.42. The Nasdaq composite added 0.8% to 9,014.56.

European governments are reopening factories, shops and other businesses but forecasters warn an economic recovery could be slow.

Chinese data reported last week showed manufacturing and auto sales are recovering but consumer spending, the biggest driver of growth for the second-largest global economy, is still declining amid widespread job losses.

In energy markets, benchmark U.S. crude gained $1.19 to $30.72 per barrel in electronic trading on the New York Mercantile Exchange. The contract rose $1.87 to $29.43 on Friday. Brent crude, used to price international oils, advanced $1.07 to $33.57 per barrel in London. It rose $1.37 the previous session to $32.50.

The dollar gained to 107.13 yen from Friday’s 107.08 yen. The euro declined to $1.0823 from $1.0828.

Associated Press.