Why is sales and operations planning an important focus for many firms? (150

 

Why is sales and operations planning an important focus for many firms? (150 words)
Why is it important for many firms to focus on yield management? (150 words)

 

What is material requirements planning (MRP)? (150 words)
Why is it important for manufacturing firms to focus on MRP?(150 words)
How does one go about analyzing and MRP problem? (150 words)

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