year, and the trading cost per sale or purchase of marketable securities to be $27.50 per
transaction. What will be their optimal cash return point?
The daily interest rate on marketable securities will be equal to:
365
1.047 1 0.000126
day
i= – =
And the optimal cash return point will be equal to:
( ) ( ) ( )
* 2
3
2
3
3 / 4
3 $27.50 $12,000 / 4 0.000126 $245,000
$ 273,684.36
day
Z F i Ls= +
= ´ +
=
LG8 14-6 Optimal Upper Cash Limit Veggie Burgers, Inc., would like to maintain their cash
account at a minimum level of $245,000, but expect the standard deviation in net daily cash
flows to be $12,000, the effective annual rate on marketable securities to be 3.7 percent per year,
and the trading cost per sale or purchase of marketable securities to be $27.50 per transaction.
What will be their optimal upper cash limit?
The daily interest rate on marketable securities will be equal to:
365
1.037 1 0.000100
day
i= – =
And the optimal cash return point and upper limit will be equal to:
( ) ( ) ( )
( ) ( )
* 2
3
2
3
*
3 / 4
3 $27.50 $12,000 / 4 0.000100 $245,000
$276,015.57
3 $ 276,015.57 2 $245,000
$338, 046.71
day
Z F i L
H
s= +
= ´ +
=
= –
=
LG8 14-7 Optimal Upper Cash Limit HotFoot Shoes would like to maintain their cash account at
a minimum level of $25,000, but expect the standard deviation in net daily cash flows to be
$2,000, the effective annual rate on marketable securities to be 3.5 percent per year, and the
trading cost per sale or purchase of marketable securities to be $200 per transaction. What will
be their optimal upper cash limit?
The daily interest rate on marketable securities will be equal to:
365
1.035 1 0.000094
day
i= – =