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Among them, nearly half show strong optimism on Chinese economy, compared with just 28 percent in 2017, the biggest growth in 14 years.

America's 45th president narrowly won the 2016 election with a pro-business "Make America Strong" theme.

Amazon’s issues are the latest indication of the industry-wide struggle among tech giants to control their massive platforms. Facebook and Twitter are at the center of yet another political disinformation campaign. Google’s YouTube is working to reverse a trend of hate speech and extremism populating its platform. And Microsoft’s LinkedIn is in a constant battle to catch and eliminate fake accounts.

Among the winners was Danish food science firm Chr Hansen , up 4.3 percent after delivering better-than expected results and a strong outlook.

Amid an annual letter dominated by the coronavirus crisis, Amazon CEO Jeff Bezos made a bold claim about sustainable shopping habits.