The economy isn't growing as fast as most would like, but it's certainly very mobile. Americans are moving between jobs faster than ever.

It is unclear whether the frequent career moves has made workers happier with their jobs than their forebears were grinding at the same job for decades. When the opportunities seem endless, perhaps it is harder for young people to be content with the job they have, since they may always wonder if there is something better around the corner.

Case in point: A new survey conducted byMatawan, New Jersey-based iCIMS, a recruitment software provider, finds that a whopping 63 percent of U.S. workers say they are looking for new employment.