Assume that additional workers are hired for the bottleneck operation to expedite setups and materials handling. The cost of the additional workers is US $50,000 per year. As a result, the annual output of the bottleneck operation will increase by 500 units. The change in operating income attributable to the increase in workers is:
- US $50,000
- US $36,000
- US $ 14,000)
- US $ 20,000)
Answer(s): C
Explanation:
Operation 2 is the bottleneck because it is functioning at its capacity. The incremental annual throughput contribution revenues -- direct materials costs) from adding workers to Operation 2 is US $36,000 [500 units x $120 unit price -- $48 DPI per unit)]. Because the cost of the additional workers is US $50,000, the change in operating income is US $ 14,000). This information is relevant to a theory of constraints TOG) analysis. A manufacturer that can sell all of its output produces its sole product using three operations. Each unit sells for US $120, and direct materials costing US $48 per unit are added at the start of the first operation. Other variable costs are immaterial. The fallowing annual cost and capacity information is available concerning those operations:
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