# Thread: Optimal capital budget MCC vs WACC

1. ## Optimal capital budget MCC vs WACC

Optimal capital budget MCC vs WACC

Date: May 26, 2008 06:38AM

A company optimal budget is the amount of new capital required to take all projects with IRR greater than:

MCC
WACC
Cost of new debt
Cost of retained earnings

Can somebody also explain difference between WACC and MCC ann siginficance of MCC?
Thanks
S

2. Date: May 26, 2008 07:54AM

WACC is the cost of capital, if you didnt use the funds to invest in a certain project you theoretically could use it to pay down your WACC.

MCC is your marginal cost of capital which is how expensive your next dollar of financing (from a debt or equity perspective) will be.

3. Date: May 26, 2008 07:55AM

MCC

if you look at the graph the optimal capital budget is where the investment opportunity schedule intersects the marginal cost of capital schedule.

4. Date: May 26, 2008 11:40AM

aren't MCC and WACC the same thing?

5. Date: May 26, 2008 11:42AM

Yep, I also think MCC and WACC are just different names for the same thing

6. Date: May 26, 2008 11:45AM

WACC is the cost of capital at a certain point in time, MCC is the cost of the next dollar.

if you take on additional financing @ a higher MCC then your WACC will change

7. Date: May 26, 2008 11:53AM

Ah yes, that makes sense. Thanks!

8. Date: May 26, 2008 11:55AM

I hate to sound like I am picking on you here, but I have to disagree with you again. WACC is the weighted average of the marginal costs of financing for each type of financing used. I took this verbatim from my Level 2 corporate finance book. Therefore, they are the same thing.

9. Date: May 26, 2008 11:57AM

"MCC is the cost of the next dollar"

When we calculate WACC, we don't use historical costs. We use the cost of financing under current market conditions, which would be the cost of the next dollar. For example, the market price of floating new bonds goes into the debt component of the WACC.

I still think they both are essentially the same thing. Although, clarification would be appreciated.

10. Date: May 26, 2008 12:06PM

thanks for the clarification wyantjs, would much rather know when I am thinking something wrong then going into the exam with bad knowledge!

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