Question

In: Operations Management

1) Eagle Fabrication has the following aggregate demand requirements and other data for the upcoming four...

1) Eagle Fabrication has the following aggregate demand requirements and other data for the upcoming four quarters.

Quarter

Demand

Previous quarter's output

1500 units

1

1400

Beginning inventory

200 units

2

1000

Stockout cost

$50 per unit

3

1500

Inventory holding cost

$8 per unit at end of quarter

4

1300

Hiring workers

$5 per unit

Laying off workers

$10 per unit

Unit cost

$30 per unit

Overtime

$10 extra per unit

Which of the following production plans is better: Plan A—chase demand by hiring and layoffs; or

Plan B—produce at a constant rate of 1200 and obtain the remainder from overtime?

Finish the calculation and show all work!

Plan A:

                                               Eagle Fabrication Solution

Demand

Regular Time Capacity

Regular Time Production

Hire

Fire

Initial Inventory

Period 1

1,400

1200

Period 2

1,000

Period 3

1,500

Period 4

1,300

Total (units)

5,200

@$30/unit

@$5/unit

@$10/unit

Subtotal Costs

$??????

$????

$????

Total Cost

$??????

Plan B:

                                             Eagle Fabrication Solution

Demand

Regular Time Capacity

Overtime Capacity

Regular Time Production

Overtime Production

Inventory (end PD)

Fire

Initial Inventory

200.

Period 1

1,400

1,200

Period 2

1,000

Period 3

1,500

Period 4

1,300

Total (units)

5,200

@$30/unit

@$30+@$10 = @$40/unit

@$8/unit

@$10/unit

Subtotal Costs

$??????

$????

$????

$????

Total Cost

$??????

Answer:

Solutions

Expert Solution

Plan A
Demand Inventory Stockout Regular Time Capacity Regular time Production Hire Fire
Period 1 1400 200 0 1200 1200 0 0
Period 2 1000 0 0 1000 1000 200
Period 3 1500 0 0 1500 1500 500 0
Period 4 1300 0 0 1300 1300 0 200
Total 5200 200 0 5000 5000 500 400
Unit Cost $            30.00 $             5.00 $           10.00
Subtotal Cost $1,50,000.00 $     2,500.00 $     4,000.00
Total Cost $1,56,500.00

Regular time Capacity = Demand - Inventory

Hire/ Fire = Absolute difference between Regular Time Capacity of current period and immediate last period.

Plan B
Demand Beginning Inventory Regular Time Capacity Overtime Capacity Regular time Production Overtime Production End Inventory
Period 1 1400 200 1200 200 1200 0 0
Period 2 1000 0 1200 0 1200 0 200
Period 3 1500 200 1200 100 1200 100 0
Period 4 1300 0 1200 100 1200 100 0
Total 5200 400 4800 4800 200 200
Unit Cost $            30.00 $ 40.00 $ 8.00
Subtotal Cost $1,44,000.00 $     8,000.00 $ 1,600.00
Total Cost $1,53,600.00

Regular time capacity is constant in this Plan at 1200.

Overtime Capacity = Demand - Beginning Inventory - Regular time Capacity

Regular time production = Regular time capacity

Overtime production = Overtime capacity

End Inventory (only if Regular time production > Demand) = Regular time production - Demand

Comparing total cost of both plan, we can say that Plan B is better than Plan A.


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