[讨论]level 2 reading 27课后第二题 朋友, investment, budgeting, reading, capital

littletree

大家好，诚心向大家请教一题，reading 27, capital budgeting课后第二题。

我觉得答案的做法不太对，好像少考虑了一部分。当折旧年限变成八年之后，cash flow不也变成8年了？那这一部分它好像没有考虑啊。我的做法是，investment outlay增加100,000，然后8年折旧，8年cash flow, 我重新求的NPV，然后和第一题算的NPV比较求差。来看新的NPV变化多少，可是我算出来NPV是增加的。是我理解错了，还是答案真的有问题，请会的朋友指教一下，拜托啦~ 如果需要我敲题目，请告知。谢谢

littletree

没有人知道吗？还是没有人明白我的意思呢？太郁闷了。或者告诉我你的解法也行，帮帮忙吧。谢谢

kngul

 thx

forwhat

I think the original answer is correct, and my doubt is that you probably connect the question two with previouse one. To treat this question as an indipendent set, things will go as what answer given.

 

initial outlay: a 100k decrease, and depreciation got 100k/8 every year, which means a 100k/8*(tax margin) write down on each year cash flow.

 

simplied calculation will be CF0=-100K, C01=5k, F01=8, I=10 => NPV=-73,325.37

littletree

太谢谢你了。帖子沉下去了，我一直以为没人理我呢，所以才看到，谢谢。