Tensão entre as duas maiores economias do mundo está aumentando às vésperas da esperada visita do presidente chinês, Xi Jinping, aos Estados Unidos em setembro

China has announced a series of economic measures against the United States, including export controls on drones and a ban on trade with six American entities.

Beijing announced a swath of measures against the United States and its firms on Wednesday, in what it described as retaliation against recent moves by Washington targeting…