Donald Trump's return to the White House with his protectionist policies poses threats for the global economy, with the prospect of new trade wars, resurgent inflation and slower growth, experts say.

Donald Trump’s decisive win of the US presidential election has world leaders already preparing for how his next administration will shape the global economy.

With his threat to impose tariffs on all imported goods, the rest of the world will have to learn how to better work together, without becoming too dependent on each other.

A recent KPMG analysis contends that if all of Trump’s policies are implemented, Australia’s economic growth would be between 0.8% and 1.5% lower than it would otherwise have been: a projected loss of between $19 billion and $36 billion.

With their votes, millions of Americans expressed their confidence that Trump can restore the low prices and economic stability they recall from his first term.

The ripple effects of President-elect Donald Trump’s win are already being felt throughout the U.S. economy as, experts say, his policies could have mixed results.