International trade

US President Donald Trump, center, arrives in Davos, Switzerland on Marine One, Tuesday, Jan. 21, 2020. President Trump arrived in Switzerland on Tuesday to start a two-day visit to the World Economic Forum. (AP Photo/Evan Vucci)

FILE - In this Jan. 10, 2020, file photo specialist Meric Greenbaum, center, works at his post on the floor of the New York Stock Exchange. The U.S. stock market opens at 9:30 a.m. EST on Thursday, Jan. 16. (AP Photo/Richard Drew, File)

Deputy Prime Minister of Canada Chrystia Freeland, left, Mexico's top trade negotiator Jesus Seade, center, and U.S. Trade Representative Robert Lighthizer, sign an update to the North American Free Trade Agreement, at the national palace in Mexico City, Tuesday, Dec. 10. 2019. Observing from behind are Mexico's Treasury Secretary Arturo Herrera, left, Mexico's President Andres Manuel Lopez Obrador, second left, Mexico's Labor Secretary Maria Alcade, third left, and The President of the Mexican Senate Ricardo Monreal. (AP Photo/Marco Ugarte)

President Donald Trump holds the signed a trade agreement with Chinese Vice Premier Liu He, in the East Room of the White House, Wednesday, Jan. 15, 2020, in Washington. (AP Photo/Evan Vucci)

A currency trader talks on the phone at the foreign exchange dealing room in Seoul, South Korea, Wednesday, Jan. 15, 2020. Asian shares have retreated as conflicting reports raised concerns over the likely outcome of a trade deal to be signed by the U.S. and China. (AP Photo/Lee Jin-man)

FILE - In this Tuesday, May 14, 2019, file photo, containers are piled up at a port in Qingdao in east China's Shandong province. China’s exports rose 0.5% in 2019 despite a tariff war with Washington after growth rebounded in December on stronger demand from other markets. Exports to the United States fell 12.5% compared with 2018 after a 14.5% contraction in December, customs data showed Tuesday, Jan. 14, 2020. (Chinatopix via AP, File)

A currency trader walks by the screen showing the Korea Composite Stock Price Index (KOSPI) at the foreign exchange dealing room in Seoul, South Korea, Monday, Jan. 13, 2020. Asian stocks have risen as investors shrug off weaker-than-expected American jobs data and look ahead to the signing of a U.S.-China trade deal. Benchmarks in Shanghai, Hong Kong and Southeast Asia all advanced. (AP Photo/Lee Jin-man)

In this handout photo provided by the House of Commons, Britain's Prime Minister Boris Johnson gestures during the first Prime Minister's Questions of the year, in the House of Commons in London, Wednesday, Jan. 8, 2020. The president of the European Commission warned Britain on Wednesday that it won’t get the “highest quality access” to the European Union's market after Brexit unless it makes major concessions. (Jessica Taylor/House of Commons via AP)

FILE - In this Sept. 16, 2018, file photo, American flags are displayed together with Chinese flags on top of a trishaw in Beijing. China's economy czar will visit Washington next week for the signing of an interim trade deal, the government said Thursday, Jan. 9, 2020. (AP Photo/Andy Wong, File)

FILE - In this file photo dated 1990, Aramco refinery at Ras Tannura, Saudi Arabia. The price of oil surged Friday Jan. 3, 2020, as global investors were gripped with uncertainty over the potential repercussions and any retaliation, after the United States killed Iran's top general Qassem Soleimani.(AP Photo/FILE)