A Better Way to Disrupt Health Care

Amazon, Berkshire Hathaway and JPMorgan Chase say they're putting their heads together to make health care better and less expensive for their employees. Just possibly, it's a partnership that could disrupt the U.S. health-care system -- in a good way.

The market value of insurance companies and pharmacy-benefit managers dropped on the announcement, a sign that investors think the alliance might inject new competition and press down on prices. For consumers, that's an encouraging development. Up to now, big private employers have helped to make the American health-care system inefficient. Perhaps they're about to start pushing the other way.