““The number of facings, depth of inventory, position compared to flow of traffic and the position within the store affect the amount of notice and purchase for the product. Shelfspace can be augmented further by special displays, end-of-aisle features or flagging information (‘Star Buy’ or ‘30% off this week’). And these are competitive, as shelfspace is a relatively inelastic commodity: more for your brands means less for the competition.””