Goods are moving around the world again and reaching companies and consumers, despite some production snarls and Covid-19 outbreaks inside China. Gone are the weekslong backlogs of cargo ships at large ports. Ocean shipping rates have plunged below prepandemic levels. Even before the holiday season, parcel carriers noted consumers had pulled back on buying goods online. Ample retail inventories have also compelled some companies to pull back on orders or restocking.