opportunity cost

If alex needs to study overseas, room and board is not avoidable as they ar daily necessities, they ar not oc
It tuition fee is the same as studying locals, it is not oc
If both of them are true, then there is no oc

2010-05-15 18:56:03 補充：
sorry, 'It tuition fee is the same as studying locals, it is not oc' is incorrect
as alex forgoes the money to study locals, so there is still an oc

2010-05-18 19:45:05 補充：
y will 'gigi' think like that? this is because he/she considers studying is the first choice and no other alternatives, so there is no oc

Opportunity cost is the highest value option forgone. If Alex needs to pay the same tuition fee studying in Hong Kong or overseas, it is not counted as an opportunity cost of studying overseas.