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090982 1 (1973-01-01)

handle is hein.gao/gaobaduzx0001 and id is 1 raw text is: 



ARNET E. BURROW AND LARRY E. HODGES


Economics of Inventory Control




Inventory control is important to management in almost all
enterprises, including Government operations which are
financed with public funds. This article discusses mathematical
and quantitative methods oj helping managers in this
important function.


  The goals of inventory management
are to:
  -provide stock to users when and
     where it is needed,
  -keep investment in inventory low,
     and
   -obtain the lowest available prices
     for items purchased, quality con-
     sidered.
The second goal conflicts with the first
and the third. Buying in large quanti-
ties reduces the probability of stock-
outs, reduces the cost of placing and
receiving replenishment orders, and
tends to result in lower prices and
transportation costs. But the larger
quantities tend to increase investment
and the cost of holding the inventory.
  The inventory manager must seek a
balance between the costs of holding
inventory, ordering additional quanti.


ties, and running out of stock in de-
ciding:
  -when to acquire additional stock
     and
  -how much to acquire.
Each of these decisions involves risks.
Both require forecasts of future de-
mand and leadtime to acquire addi-
tional stock. Such forecasts are seldom
free of error. Demand usually varies
from month to month and delivery
time from order to order. If he is to
achieve a reasonable balance between
the costs, the manager must assess the
probability of an error in his forecast-
ing and provide for it.

The Structure of

Inventory Systems

   Knowledge of the properties of a


Mr. Burrow, assistant manager of the Kansas City regional office, has previously
contributed to The GAO Review. He is a CPA (MiEsouri) and a member of the
Missouri State Society of CPAs. Mr. Burrow joined GAO in 1953.
Mr. Hodges is a member of the Systems Analysis Staff of the Division of Financial
and General Management Studies. He has been with GAO since 1969, beginning
with the Kansas City regional office. He holds a Master's degree in mathematics from
Kansas State College and is a member of The Institute of Management Sciences.

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