Us stock indexes showed at the end of the past week the maximum decline in more than two years, since January 2016, on the fears of the world trade war, according to MarketWatch. The Dow Jones Industrial Average last week lost 5.7%, Standard & Poor's 500 - 6%, Nasdaq Composite, at 6.5%. Concerns about the possibility of trade wars after the announcement of US President Donald trump on the introduction of duties on imports of Chinese goods and the message of the PRC to take action outweighed of positive statistics.