Back in the day, people stayed with a job their entire lives because that was the way to get promotions and raises. Well that is not the case anymore.

The Atlantic magazine analyzed data from the Bureau of Labor Statistics, and they found the key to getting a big raise is to go to work somewhere else.

People who switched jobs last year made 4.5% more than the year before.

People who stayed at the same job made 3.9% more.

That doesn't sound like a huge difference, but across such a giant number of people, it's significant.

The gap was even bigger for people under 35 who switched full-time jobs.

This study backs up one from a few years ago, that found people who stay at the same job make 50% less in their lifetimes than people who switch every few years.