This paper introduces and applies an EM algorithm for the maximum-likelihood estimation of a latent class version of the grouped-data regression model. This new model is applied to examine the effects of college athletic participation of females on incomes. No evidence for an “athlete”...

This paper contributes to the growing literature examining how students' grades on in-class exams are affected by their scores on out-of-class homework assignments. Our major finding, that exam grades and homework scores are positively related, is what educators might have anticipated, yet...

Examines the relationship between the marginal tax rate and usage of professional tax return preparation.