short run and long run effect - 經濟

學校:American School

教師:John

科目:microeconomic

題目:An engineer has discovered a new method of milk extraction and therefore
each cow has a faster revovery time between milkings.The costof feeding and
medicating cows drops significantly.
a. If all diary farms in a perfectly competitive milk market, graph short
run effect for both individual firms and the market overall.
b. In words and graphical illustration indicate the long run effects
of this technological advances.

我的想法:
請問一下這題因為沒有提供任何數據 我要怎麼知道 p是否大於avc
又所畫的圖應該是像怎樣的?
老師是要求一個圖要有短期跟長期嗎?

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