The difference between part$-$time work and job sharing is that

A$.$ a firm saves money by hiring part$-$timers to do full$-$time work by classifying them as part$-$time, but if they classify two part$-$timers as job sharing, they must pay them more than they would a part$-$time employee

B$.$ jobs that are classified as part$-$time are jobs that can be done in a shorter amount of time than that of a full$-$time job, whereas job sharing creates one full$-$time position out of two part$-$time employees

C$.$ part$-$timers work individually $-$ they simply come to work, do their jobs, and leavewhereas people in job$-$sharing positions work more on teams

D$.$ part$-$time work requires people who have more skills than does job sharing, where one person can have certain skills, and the person they job share with has skills they do not

E$.$ people in job$-$sharing positions still receive benefits because they are essentially filling a full$-$time position, while part$-$timers do not receive benefits