By Rachel Zupek, CareerBuilder.com writer
For many people, working part time is a necessity -- not a choice. Perhaps they have to work part time in order to make ends meet, but did you know that almost 1.5 million people are working part time because they were unable to find full-time jobs? In November 2008, the number of people who worked part time for economic reasons, meaning that they would like to work full time but couldn't because their hours had been cut back or because they were unable to, rose to 7.3 million. That number is more than a 2 million-person increase over the past 12 months.