Method

Each entry does three things and stops. It names one technique, describes where in the trade it came from, and says what it is built to achieve. Where an effect has been studied, the entry says what the research examines rather than reporting a figure out of its context.

What is described

Fixtures, layout, shelf position, price typography, promotional structure, loyalty schemes and their screen equivalents. All of it is ordinary practice, discussed openly in the retail trade and its press. Nothing here is leaked, and nothing here is an accusation.

What is not here

• No guidance about money. This is not a budgeting site and it does not tell anybody how to shop.
• No retailer named as an example, and no products or offers of any kind.
• No claim that a technique makes anybody spend a stated amount. The techniques are described; the arithmetic of a household is not ours to publish.

Corrections

Where an entry is wrong about how a trade works, the entry gets changed. Send a correction and say which entry it concerns.