Working part time: by choice or by constraint

The selection of workers into part-time jobs and the wages they earn are analysed using the 1989 Labour Market Activity Survey. We focus on the distinction between voluntary and involuntary part-time workers, since involuntary part-time workers earn substantially lower wages than other workers. We find that the selection of individuals into involuntary part-time work is more closely tied to job characteristics than personal or human capital characteristics. The lower wage earned by involuntary part-time workers is largely due to differences in returns and selection effects, rather than differences in endowments.