Data suggest that those who work more than one job do so for many reasons other than economic necessity. Some careers are competitive and hard to break into or skills obtained at one job may lead to a second job. (JOW)

Data from the Current Population Survey indicate that relatively well paid, highly educated persons have more than one job because their schedule allows it, because their expertise is in demand, or because their financial reasons extend beyond meeting basic living expenses and paying off debts. (Author/JOW)