All frameworks and cheat sheets

Reference table

Four shopper realities behind one affinity score

Why the same high lift can call for four different actions

Table of four reasons two products share a basket, one job, two jobs, a forced substitute and a shared driver, each showing high lift.
All four look the same in the rules table. Only the shopper can tell you which one you have

A table showing four different shopping trips that produce the same high lift in market basket analysis: one job, two jobs on one trip, a forced substitution and a shared driver such as a promotion. For each it gives what the shopper would say and what the merchandising team should do. Use it to decide which basket rules need a conversation with shoppers before you act. Koji can run those trip interviews with shoppers picked from your basket data.

Where this appears

What's in this reference table

What actually happenedWhat the shopper would sayWhat the data showsWhat you should do
One job: both items serve one purpose, like pasta and sauce for dinnerI was making dinnerHigh liftBundle, co-locate, cross-promote. The rule is real
Two jobs, one trip: a stock-up run that includes a birthday cardThose are unrelated, I just needed bothHigh liftDo nothing. Co-locating them helps nobody
Forced substitute: the preferred item was out, so a second choice went inThey were out of my usualHigh liftFix availability. Promoting the substitute entrenches the failure
Shared driver: same promotion, aisle or buyers, for unrelated reasonsIt was on offerHigh liftThe association belongs to the promotion, not the products

Use this image

Free to use in your docs, decks and posts under CC BY 4.0, as long as you credit Koji with a link to this page. To embed it, paste this into your page:

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<a href="https://www.koji.so/visuals/four-reasons-products-share-a-basket"><img src="https://www.koji.so/visuals/four-reasons-products-share-a-basket/four-reasons-products-share-a-basket.png" alt="Table of four reasons two products share a basket, one job, two jobs, a forced substitute and a shared driver, each showing high lift." width="1200" height="889" /></a>
<p>Source: <a href="https://www.koji.so/visuals/four-reasons-products-share-a-basket">Four shopper realities behind one affinity score</a>, Koji</p>