Talks planned this weekend between U.S. and Chinese officials in Switzerland are a culmination of more than three months of dizzying rounds of retaliatory tariffs between the two countries that have crippled each other’s exporters and dragged on their economies. Washington and Beijing are entering talks with tariffs on each other’s goods at an all-time high. U.S. duties on Chinese imports stand at 145%, while China’s retaliatory tariffs on U.S. goods have reached 125%.