Amazon.com Inc. had better watch out. The $200 billion e-commerce market Morgan Stanley is forecasting for India by 2027 just got a new contender — with a very different plan. Energy tycoon Mukesh Ambani has already disrupted the country’s telecom industry. His next big foray may be online retail. But India’s richest man may not create a marketplace of his …

The basic cause of America’s student-loan crisis is no mystery: College tuition and fees continue to soar while the earnings of recent graduates remain flat. It shouldn’t be surprising that there’s also a straightforward way to lower the cost of a college degree: Reduce the amount of time it takes to earn one. The US’s four-year bachelor’s degree is based …

Cryptoassets are showing the signs of a bubble. Market capitalization is $222 billion, 16 times as much as a year ago, with no significant change in tangible economic value. The virtual currencies elicit investment excitement and breathless news coverage; sober analysis treating both technical issues and economic fundamentals is rarer. There is incessant cheerleading by people who own cryptoassets, manufacture …