The companies announced Dr. Atul Gawande, a professor at Harvard and the author of several books on health care, will lead the new health venture starting July 9. But other questions remain unanswered.
JPMorgan Chase and Amazon have demonstrated substantial power to digitize their industries, even influencing the strategy of others. But automating and streamlining health care will be a particularly tough task.
Warren Buffett’s Berkshire Hathaway Inc. asked the Federal Reserve to allow it to hold as much as 24.99 percent of American Express Co., a stake that’s been growing because of the lender’s stock repurchases.