from reading these threads it seems that some schools give out more acceptances than they have seats and expect that roughly half will go somewhere else. consequently these schools have very little waitlist move ment (i.e. if you give out 300 acceptances for 160 spots you will probably come close to filling the class and will not often go to the waitlist). I was just wondering, what happens if too many acceptees decide to matriculate and the school runs out of seats ?