Capital Budgeting and Team Investments ◾ 407
k
W
=w
D
k
D
+w
E
k
E
where k
W
is the weighted cost of capital, w
D
and w
E
are the percentages of debt
and equity nance used, and k
D
and k
E
are the costs of debt and equity capital. If
preferred and common stock were both used, the weighted cost of capital should
account for their dierentiation as well.
It should be underscored that when facilities are built, an owner typically uses
bonds or cash. If a facility is completely nanced with a bond, then all of the cost
of capital comes from that instrument of debt. If cash is used, then the cost of
capital could be considered the return the owner would have received from the next
best investment. In most instances, owners rely on a mix of equity (ca