Analysts expressed concern about the economic and diplomatic consequences of U.S. President Trump's threat on Saturday to impose 30% tariffs on imports from Mexico and the European Union starting August 1, Internet reported. Mary Lovry, a senior fellow at the Peterson Institute for International Economics, warned that Trump's tariffs would lead to higher prices and job losses in due course, while Alan Sykes of Stanford Law School said he was concerned about whether the United States could be seen as a credible party in future negotiations. (Jin Shi)