Opportunities for other economies to grow out of the fallout of the United State's trade policy

The US has created vast uncertainties - with an escalation in trade tensions with China, and tariffs on all of its trading partners.

AUT economics professor Niven Winchester forecasts a resulting 0.03 drop in our GDP.

He says countries like India and Vietnam look to gain over the next 25 years - because they produce goods that can substitute for Chinese products.

Winchester says we can think of India like China 30 years ago - set for rapid growth - and likely hovering around 10 percent of global GDP by 2050.