The relationship between access to benefits and weekly work hours

Source: John L. Bishow, U.S. Bureau of Labor Statistics, Monthly Labor Review, June 2015

From the abstract:
Data from the National Compensation Survey (NCS) consistently show that part-time workers have lower access to benefits. The designation of a job as full time or part time in the NCS is based on whether the responding establishment reports the job as full time or part time rather than on actual hours worked. However, legal requirements for providing access to benefits often depend specifically on hours worked. This article examines access rates to benefits—retirement, health insurance, and leave—based specifically on scheduled weekly hours. It also takes into account whether a person is employed in an industry where full-time or part-time work is more prevalent. The results show distinct variations in access rates in hour-specific categories.