Evelyn Bromet, professor of psychiatry at SUNY Stony Brook, says the study's real value may be in the picture of mental health that emerges over time.

NPR: Mental Issues Surge, Suicide Rates Flat Post-Katrina

The reasons I will attempt to deduce without great mental energy: once a donor realizes that his or her archive has financial value, he or she might be less likely to donate.

FORBES: Donating an Archive? Your Book Collection? Get an Appraisal