急，经济学原版书一问题 accounting, particular, generated, purposes, company

kasinkei

急，请教老师，经济学原版书P122，谢了
??? Four years ago a company purchased a $1 million machine with
an estimated useful life of 10 years. For accounting purposes, the
machine is being depreciated in the amount of $ 100,000 annually.
The machine is used to manufacture a particular product. The
annual revenue generated from operating the machine is $
650,000 and the annual cost of the factors of production, other
than deprecation, employed to generate that revenue is
$600000.Should the company continue to operate the machine?
A. Yes
B. No, because the machine is being operated at a net loss
C. No, because the purchase price of the machine is a sunk cost

Andreas42

是不是继续使用这个机器不是看它创造的收益是不是超过了总成本，因为总成本中的固定成本一部分是已经发生的，你不使用这个机器也收不回来的，所以要看的是继续使用它创造的收益是不是超过了可变成本，收益600000超过了可变成本650,000-100,000，所以应该选YES.