Which criterion most directly impacts supplier selection?

• A. Reliability: on time delivery, performance history
• B. Market share of the supplier
• C. Number of employees
• D. Advertising expenditure

Answer: (A)

Reliability in on-time delivery and a proven performance history is the most directly impactful factor because it directly determines whether the supplier can meet production schedules and customer demand. When a supplier consistently delivers on time and shows a track record of meeting commitments, it reduces the risk of stockouts, delays, and the need for expensive expediting—all of which disrupt planning and inflate costs. This reliability enables accurate forecasting, lowers safety stock requirements, and supports smooth operations across the supply chain. In contrast, market share, number of employees, or advertising spend may indicate size or marketing prowess, but they do not directly prove the supplier’s ability to consistently deliver what’s needed when it’s needed.