Table 1 presents the conditional logit model,
where the dependent variable takes the value 1
when the subject decides to contribute to at least
one fund, and 0 otherwise.3 Individual fixedeffect
and time dummies are incorporated. The
control group consists of all nonfreshmen not in
the treatment groups. This model tests the effect
on contributions of being in one of the two
treatment groups and, more important, whether
there are differences between the two groups.