Econ問題 opportunity cost

"When there is an increase in the value
of the highest-valued option, there is only an
increase in the value of the choice to be satisfied.
There is no change in the opportunity cost."

呢句係對的
你睇唔明既問題重心係:
'the highest-valued option' and 'highest-valued option forgone'

example:
mary鐘意去concert同埋去睇足球比賽
而家mary去concert,咁佢既機會成本會點呢?
case i : the concert is dull

concert 係 'the highest-valued option' 佢dull 係唔會影響到踢波既value,所以 oc 唔變啦

case ii : 足球比賽好好睇
睇足球比賽 係 'highest-valued option forgone'
所以好好睇 , value就會增加, oc 亦增加

希望你明啦

例:

Ranking
1 可樂
2 橙汁
3 雪碧

-----

"If the highest-valued option forgone changes,
there is a change in the opportunity cost."

如果你揀 可樂 ,, 你的 opp. cost就係 橙汁
如果你揀 橙汁 ,, 你的 opp. cost就係 可樂


_==================================_


"When there is an increase in the value
of the highest-valued option, there is only an
increase in the value of the choice to be satisfied.
There is no change in the opportunity cost."


如果你揀 可樂 ,, 你的 opp. cost就係 橙汁

if 有人同你講 橙汁可以賣到 $10 ---- 就係價值增加左 ( increase in the value of the highest-valued option )

如果你揀 可樂 ,, 你的 opp. cost依然係 橙汁
因為你既喜好 (ranking) 冇變到 ,, 變既只係 opp. cost 既 value