Forecasting item-level demands : an analytical evaluation of top-down versus bottom-up forecasting in a production-planning framework

• Main Authors: Viswanathan, S., Widiarta, Handik, Piplani, Rajesh
• Other Authors: Nanyang Business School
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Business::Management
• Online Access: https://hdl.handle.net/10356/100772; http://hdl.handle.net/10220/18193
• Institution: Nanyang Technological University

We compare the performance of top–down (TD) and bottom–up (BU) strategies for forecasting the demand of an item that belongs to a product family. The TD strategy forecasts the sum of the item demands and distributes it to the individual item based upon the historical demand proportion of each item i...