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Allocating Limiting Resources

When a resource needed in production is limited or constrained, management must decide where to allocate the limited resource in order to maximize the firm's profits. The most common limited resource is time.

Contribution Margin per Limited Resource
When determining where to allocate the limited resource, you must prioritize the products that bring in the highest contribution margin per limited resource, not per unit.

For Example
Orange Inc. produces 2 products: the ePhone and the ePad. The ePhone has a contribution margin per unit of $400 and takes 2 hours to be made, and the ePad has a contribution margin per unit of $900 and takes 10 hours to be made.

ePhone CM/hour = $400 / 2 = $200/hour - MORE PROFITABLE
ePad CM/hour = $900/10 = $90/hour - LESS PROFITABLE

Maximizing Demand
If demand is limited for the products being produced, you should always try to maximize sales of the most profitable product, and only if demand has been fully satisfied will you start to produce your next most profitable unit.



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Example: Allocating Limited Resources

Marisa’s Movie House has 4,000 machine hours available to use to produce either Product 22 or Product 44. The cost accounting department developed the following unit information for each of the products:


  1. How many units of each product should be produced to maximize income?
  2. What is the most that Marisa’s Movie House is willing to spend in order to complete the production of all unfinished units?

Practice: Allocating Limited Resources

Toronto Ltd produces 3 different bicycles which are the A, the B, and the C.

The fixed costs incurred for the production of the three bike models amount to $120,000. The total machine hours available amount to 3,800 hours.
How many units of each product should Toronto Ltd. produce?