A number of world leaders here, including Indian Prime Minister Narendra Modi, have spoken about an urgent need to shun protectionism.
Trump's speech, scheduled for Friday, is being keenly awaited in the backdrop of his America First policies.
Addressing a press conference, Treasury Secretary Steven Mnuchin said the size of the US delegation to Davos this year is testament to the scale of Trump's work over the past year.
"The US was an uncompetitive model before; now it's on a very competitive one," Ross argued.
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On whether there is an asset bubble in the US, Mnuchin said what is happening in the country is a reflection of the programmes being put in place. "As we look at US growth, it continues to look quite good and is a very attractive place to invest," he added.
Asked about Canadian Prime Minister Justin Trudeau forming the Trans-Pacific Partnership (TPP) without US, he said, "We are fans of bilateral trading agreements. We believe in free and fair trade. Anyone who wants to do trade with us on reciprocal basis is free to do it. We're looking to increase exports."
Regarding the globalisation versus 'America First' debate at Davos, Mnuchin evaded any direct reply, but said it is an important forum and as the largest economy in the world, their objective is to be here to interact with important counterparts.
Ross, however, said, "Protections are essential to having markets operate properly, to have everyone play by the rules."
On whether corporate tax rates are helping to boost investment, Mnuchin said, "The vote from the market is very positive. It's up a lot, massive investment, many companies commit millions of dollars. Apple - what they're bringing back in terms of cash, what they're paying in taxes. 2.5 million people getting special bonuses. We've raised wages and bonuses. We couldn't be happier with the response from business."
Regarding the risk of triggering a trade war, Ross said trade wars are fought every single day.
"Unfortunately every single day there are various parties violating the rules and taking advantage. There have always been trade wars; the difference now is US troops are now coming to the ramparts," he said.
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