The marketplace is a volatile place. Like a field built on a fault line, it can crack at any moment. Sometimes, that results in economic anxiety, but at others, the cracks can reveal some stupendously profitable new market. All we can do is study the trends and dive in when we find one. But, it doesn’t just stop at

In the 1920s, the Hawthorne Works in Chicago commissioned a study to test the productivity of its workers on the factory floor. Would the employees work differently in more or less light? The answer? They became productive in more light . . . and less light. Productivity, it seemed, had nothing to do with the amount of