CFA一級經(jīng)濟精選考點
 
  In the long run,if price is below average total cost(ATC)the firm will:
  A)keep running.
  B)cover its variable costs.
  C)shut down.
  Answer:C
  If the price is below ATC then the firm is losing money.If the firm believes the price will never exceed ATC the only way to eliminate fixed costs is to go out of business.
  解析:
  首先,要明確這題問的是Long-run,長期下最關(guān)鍵的是“所有要素皆可變”。
  意味著沒有FC,只有TC=VC。
  然后,P<ATC,意味著,TR<TC(都乘以Q)。
  如果是短期,TR<TC,在AR>AVC的時候依然可以繼續(xù)經(jīng)營。
  但是,強調(diào),這是長期下,所以TR<TC就無法繼續(xù)經(jīng)營,shut down關(guān)閉。
  這里,在現(xiàn)實下,如果企業(yè)堅信之后的收入還是可以超過支出,那可以繼續(xù)堅持,但是CFA不涉及這個考量。