Emerging-market equities are sinking and the U.S. dollar is routing developing-country currencies to an extent not seen since right after Donald Trump's shock election.

This time, it's the U.S. President's plan to dramatically cut tax rates for businesses that's causing the undoing. Emerging-market traders, who fear the overhaul will spark the repatriation of dollars, could be forgiven for having a flashback to November, when the President's win and promise of pro-business reforms set off a 7-per-cent rout in the asset class.

But a cohort of money managers and strategists, including JPMorgan Chase & Co., UBS Wealth Management and Standard Life Investments Ltd., say this time is different. Shares in developing nations are just pulling back after a 27 per cent rip over the first nine months of the year.

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"It's more a bump in the road than a different road," said Kieran Curtis, who helps oversee $5-billion (U.S.) in emerging-market debt at Standard Life in London and favours the Mexican peso, Indonesian rupiah and Malaysian ringgit. "It's not clear that the tax plan will cause a massive dollar bull trade. Spending is good for growth in the U.S. as well as [emerging markets]."

Here are other reasons why emerging-market assets have room to go higher, according to pundits:

Lucy Qiu, an analyst at UBS Wealth Management's chief investment office:

Adrian Mowat, chief Asia and emerging markets equity strategist at JPMorgan:

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Robert Marshall-Lee, fund manager at London-based Newton Investment Management:

"I don't care about short-term gyrations – they create an opportunity," he says.

Mr. Marshall-Lee sees return potential exceeding 50 per cent over five years for emerging-market investments in his $210-million emerging-market equity fund, which has its largest weights in India, China, South Africa and South Korea.