Money Costco says ‘prices will go up’ in the wake of U.S. trade war with China as tariffs rise May 30, 2019May 30, 2019 Charisse Jones, USA TODAY Comments Off on Costco says ‘prices will go up’ in the wake of U.S. trade war with China as tariffs rise Costco is latest retailer to say that the trade war between China and the U.S. will lead to higher prices but it's taking steps to withstand trade war