The reopening of the U.S. economy after COVID-19 is driving trade flow disruptions that have implications for the major container ports. One example is the relative performance of the neighboring ports of Los Angeles and Long Beach. Long Beach’s volumes rose by 9.5% year over year in May while Los Angeles’s fell by 29.6% due to the “shift of some vessel services that amounted to about 10% of our normal business” according to Port of LA Director Gene Seroka. All but two of the top 20 U.S. port complexes saw a drop in import traffic in May compared to a year earlier. Mobile and Wilmington,...