Puerto Rico’s post-hurricane plight has drawn attention to the Jones Act, the 1920 law that compels all maritime commerce between US ports to be carried on ships built, owned and crewed by Americans. The law is adding to the island’s problems, and should be set aside for that reason alone — but the Jones Act was, or should have been, …

China is suffering from a frigid winter, but it can’t blame Mother Nature alone. Late last week, following a widespread uproar, officials reversed a policy banning some provinces from using coal for heat — which had the inadvertent but predictable effect of leaving large swathes of the country freezing cold. China’s government has been keen to reduce air-pollution levels, which …

Amazon.com Inc.’s $13.7 billion purchase of Whole Foods Market has inspired visions of a new breed of grocery juggernaut, trampling rivals still figuring out how to sell food online. At first glance, a recently released consumer survey by RBC Capital Markets offers some justification for those fears, showing Amazon already dominating online grocery shopping. And Amazon has only just begun …