Should you buy a product from the middle of the shelf?
Position contains information, but not certainty.
Not necessarily. Shelf position can be influenced by stocking practices, product size, promotions, and customer behavior rather than product quality itself.
Many shoppers develop personal rules about where to pick products from a shelf.
The hidden mechanism is inventory movement. Different shelf positions experience different customer interactions, restocking patterns, and visibility levels.
Imagine a shelf where customers consistently reach for products at eye level first. Over time, product movement patterns become linked to position rather than quality.
A second-order effect develops because customers observe one another. Shopping habits spread socially and can reinforce particular shelf-selection behaviors.
People often think shelf position reveals what a product is. More often, it reveals how people interact with it.
