Phoenix

Flowers and notes are placed in tribute to Senator John McCain outside a mortuary in Phoenix, Arizona, on August 26th, 2018.

We canvassed the world of the social and behavioral sciences, looking for rising stars whose careers promise to make a lasting mark. We'll be profiling the top 30 throughout the month of April.

For many, population is the only metric that matters. But what does it mean when a city's population is declining while its workforce is growing—in both size and smarts?