High-skilled migrants are vital for the US economy, the OECD's chief economist told AFP, after the United States imposed a $100,000 fee for H-1B visas widely used by the tech industry.

Alvaro Pereira, who is leaving his post after being named governor of Portugal's central bank, spoke to AFP as the Paris-based organisation released an updated outlook for the world economy.

The Organisation for Economic Co-operation and Development, a 38-member grouping of wealthy nations, upgraded the forecast to 3.2 percent growth in 2025, up from 2.9 percent in its last report in June.

The OECD said the economy "proved more resilient than anticipated" in the first half of the year as companies rushed to import goods before US President Donald Trump's tariffs took effect.

It also raised the US growth

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