Accountable care organizations have hit American health care like the British Invasion.

The drop in uninsurance rates held across almost every demographic group. Almost.

Four in 10 employees would leave their jobs if they could purchase health insurance on the open market that is comparable to their existing coverage and out-of-pocket expenses.

KKR & Co., the private-equity firm led by George Roberts and Henry Kravis, agreed to buy a stake in hedge fund BlackGold Capital Management LP as it continues to grow beyond buyouts, said a person with knowledge of the deal.