Clay Risen

First as a correspondent and later as a professor, he pushed his industry to adopt more rigorous, quantitative methods.

As a professor at the Wharton School and a pioneering woman in a male-dominated field, she developed new ways of thinking about tough issues.

The Tennessee whiskey, long snubbed by connoisseurs and collectors, is suddenly grabbing attention with a series of special releases.

A tough but pragmatic negotiator, he led his union through decades of tumult, then helped drive through the president’s infrastructure plans.

He was among the first to offer a comprehensive explanation, and a possible solution, for the country’s rising health care costs.

In the wake of hurricanes and the BP oil spill, he revolutionized his industry by turning from wild catches to cage farming his precious bivalves.

As a founder of Adobe Systems, he oversaw the development of software and systems that made modern personal computing possible.

She collapsed a day after the police raided her home and the offices of The Marion County Record, a weekly paper in Kansas.

Hired to run a troubled Mississippi affiliate of NBC, he turned it into a respected and highly profitable operation, with a more diverse staff.

By mechanizing and greatly expanding production, he made the gooey yellow chicks an Easter favorite and a pop-culture phenomenon.