Despite inking a tentative six-year contract agreement at West Coast ports last month, retailers are closely monitoring labor disputes at ports in western Canada and a potential Teamsters strike against UPS, according the NRF and Hackett Associates’ Global Port Tracker. In May, import cargo volume at the nation’s major container ports was down 20% year-over-year to 1.93 million twenty-foot equivalent units, but up 9% from Apr., and that number is expected to climb toward a peak in Aug. Hackett noted ... Log in to view full article.