The authors apply the comparative technique originated by K. I. Wolpin (1977) to discriminate between the 'weak' and 'strong' screening hypothesizes. Controlling for self-selection, they find evidence for weak, but not strong, screening. Copyright 1998 by Scottish Economic Society.

We explore the relationship between earnings, education, and fixed-term contracts using data from the 1997 "British Social Attitudes Survey". We find that the log hourly wage of workers employed under such contracts is approximately 13% lower than that of their 'permanent' counterparts, even...

We investigate the attributes of supervisors and the key correlates of the extent of their supervisory responsibilities. We find a strong correlation between wages, education, experience, firm size and the extent of supervision. One implication of this is that firms may be indifferent between...