This week Kraft Foods recalled nearly 2.5 million boxes of macaroni and cheese that were potentially contaminated with metal pieces. Kraft and other processed food manufacturers are facing many challenges. Toby Talbot/AP hide caption

itoggle caption Toby Talbot/AP

With the technology to conduct more nuanced tests, some companies say they can provide more useful detail about how people think in dynamic situations. Marcus Butt/Getty Images/Ikon Images hide caption

itoggle caption Marcus Butt/Getty Images/Ikon Images

The founder and chairman of Shake Shack, Danny Meyer, visits the floor of the New York Stock Exchange. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

One demonstrator advocates for paid sick leave at a 2013 rally outside New York's city hall. The city is now one of several in the U.S. to have passed a measure mandating paid sick days. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

Dave Tobelmann worked for 33 years at General Mills before retiring five years ago. Not long after, he returned to the company, this time through a staffing firm specializing in retiree placement. Courtesy of Dave Tobelmann hide caption

itoggle caption Courtesy of Dave Tobelmann

Protesters march in New York City on Dec. 4 to demand an increase in the minimum wage to $15 per hour. New York state's minimum wage rose to $8.75 on Wednesday. Andrew Burton/Getty Images hide caption

itoggle caption Andrew Burton/Getty Images

There were $3 trillion worth of corporate mergers in 2014. Comcast's proposed acquisition of fellow cable company Time Warner was the largest at $45 billion. Gene J. Puskar/AP hide caption

itoggle caption Gene J. Puskar/AP