Commentary

Investors must reinvent themselves or struggle mightily.

The idea is broadly supported by health-care policy experts, but it's meeting resistance from two powerful forces.

Further change can be expected, as calls grow louder for better health-care value for the dollar.

After years of regulatory whiplash, companies are directing their attention to plan designs, contribution strategies and employee health initiatives.

Buying Humana would put Walmart into some less familiar lines of business, but the Medicare piece does fit with its retail and pharmacy customer base.

New Jersey police and firefighters will have more control over their pensions, but is that really a good thing?

The share of U.S. health-care spending devoted to administrative costs, including billing, is roughly three times what it is in other affluent countries.

Without having done much yet, Amazon.com Inc. is already transforming U.S. health care -- and not necessarily for the better.