Footwear and apparel-maker Adidas reported a 19% surge in currency-adjusted earnings in the fourth quarter, including a 31% rise in sales in North America. That likely continued in the first quarter with U.S. seaborne imports of Adidas products having risen 26% in the first two months of the year. One challenge for apparel companies in the coming year are potential tariffs on Chinese exports to the U.S. The company’s CEO, Kasper Rorsted, has previously indicated price increases are one route to deal with such pressure. Another is that Adidas has diversified its supply chain such that Chi...