Final answer:
Efficient supply chains are used by firms that have a competitive priority of consistent quality, serve demand that is unpredictable, and have high product variety.
Step-by-step explanation:
Efficient supply chains are used by firms that have a competitive priority of consistent quality, serve demand that is unpredictable, and have high product variety.
For example, companies that prioritize consistent quality need efficient supply chains to ensure that their products meet customers' expectations consistently. Similarly, companies dealing with unpredictable demand need supply chains that can quickly respond to changes in demand to avoid stockouts or excess inventory. Additionally, companies with high product variety need supply chains that can handle the complexity of managing and delivering a wide range of products.