Which inputs are used in demand forecasting for stock optimization?

• A. Historical usage
• B. Seasonality
• C. Events
• D. All of the above

Answer: (D)

Demand forecasting for stock optimization relies on multiple inputs to capture what drives demand. Historical usage provides a baseline by showing past sales under similar conditions, helping establish the usual level and trend. Seasonality accounts for predictable, repeating fluctuations within a year or across seasons, so you can stock up in peak periods and pull back when demand dips. Events cover irregular but impactful occurrences like promotions, holidays, or external happenings that can cause sudden surges or drops. Each input adds a different angle to the forecast, and using them together improves accuracy and helps maintain appropriate stock levels. All of these inputs are used in practice.