What is ABC analysis?
- ABC analysis is a type of inventory
classification method in which inventory is divided into three
categories, A, B, and C, in descending value. A has the highest
value items, B is lower value than A, and C has the lowest
value
- The ABC analysis provides a mechanism for identifying items
that will have a significant impact on overall inventory
cost,[1] while also providing a mechanism for
identifying different categories of stock that will require
different management and controls.
ABC analysis works by breaking it down in the following
ways:
- A-items: 20% of all goods contribute to 70-80% of the annual
consumption value of the items
- B-items: 30% of all goods contribute to 15-25% of the annual
consumption value of the items
- C-items: 50% of all goods contribute only 5% of the annual
consumption value of the item
What is the purpose of ABC analysis?
ABC Analysis allows inventory/purchasing managers to segregate
and manage the overall inventory/suppliers into 3 major groups.
This allows different inventory/supplier management techniques to
be applied to different segments of the inventory/suppliers in
order to increase revenue and decrease costs. In terms of a
Pareto Analysis, it separated the critical few
from the trivial many.
- some benefits of ABC analysis are
· Better control over high-value inventory improves
availability, and reduces losses and costs.
· More efficient use of stock management resources..
· Relatively low value of B or C class holdings can allow a
business to hold bigger buffer stocks to reduce stock outs.
· Fewer stock outs results in improved production
efficiency.
· Fewer stock outs and improved production efficiency resulting
in more reliable cycle time and, therefore, improved customer
satisfaction.
Discuss the major inventory costs that are used in
determining EOQ?
- The two most main inventory management costs are ordering costs
and carrying costs. Ordering costs are costs incurred on placing
and receiving a new shipment of inventories. These include
communication costs, transportation costs, transit insurance costs,
inspection costs, accounting costs, etc. Carrying costs represent
costs incurred on holding inventory in hand. These include
opportunity cost of money held-up in inventories, storage costs
such as warehouse rent, insurance, spoilage cost
- Ordering costs and carrying costs are quiet opposite in nature.
To minimize its inventory carrying costs, a company must place
small orders. But small order size means that the company must
place more orders which increases its total ordering costs.
Similarly, if a company wants to cut its ordering costs, it must
reduce the number of orders placed which is possible only when
order size is large. But increase in order size means that average
inventory balance on hand will be high which increases total
carrying costs for the period.