50. Self-Checkout

June 21, 2026

AI Summary

5 min read

A few weeks ago at a supermarket in New Jersey, Christopher Andrews reached a breaking point. He had a cart with 30 to 40 items, it was 9 p.m., and the staffed lanes were closed. When staff directed him to the self-checkout, he left without buying anything.

The episode traces how self-checkout machines moved from an occasional option to a fixture in most large grocery chains. It also examines what that shift actually transfers from stores to shoppers.

Early experiments in customer labor

Self-service grocery shopping began with Piggly Wiggly in 1916. Clarence Saunders let customers walk the aisles and select their own items, which reduced the need for clerks to gather orders. The final step—tallying and bagging—still required a cashier. Saunders later tried a fully automated store called Keedoozle that relied on vending machines, but it failed. The first working self-checkout machine appeared in 1986 at a Kroger near Atlanta, built by Check Robot. Adoption stayed limited until the years before the Great Recession, when chains looked for ways to cut operating costs while competing with Walmart and Target. Today the machines appear in 96 percent of major grocery chains and make up roughly 40 percent of checkout lanes.

Measured speed versus perceived speed

Continue reading the full summary in the app — free to try.

Read Full Summary →

Free • No credit card required

Listen to Audio Summary Open in App

Never miss an episode of The Economics of Everyday Things

Get every new episode summarized in your inbox — free, ~5 minutes to read.

No spam. Unsubscribe anytime.

What you'll learn

1 50. Self-Checkout — The Economics of Everyday Things
2 (01:00) **Christopher Andrews' Breaking Point** - Sociology professor recounts being forced to use self-checkout with 30-40 items at 9pm, sparking the episode's central question about whether the technology is a good deal for shoppers
3 (02:21) **The Core Tension** - Andrews frames self-checkout as "transferring what were paid tasks that cashiers do onto unpaid customers," asking what shoppers get in return
4 (02:40) **History: From Clerk to Self-Service** - Piggly Wiggly (1916) pioneered self-service grocery, cutting labor costs and lowering prices; Clarence Saunders later attempted a fully automated "Keydoozle" store that failed
5 (04:23) **The First Self-Checkout Machine** - Check Robot introduced the first automatic checkout at a Kroger in Atlanta (1986); the technology didn't take off significantly until the 2000s as retailers sought cost-cutting during the Great Recession
6 (05:21) **The Economics of Installation** - A four-lane self-checkout setup costs ~$125,000 plus tens of thousands more for maintenance and software; 96% of major grocery chains now use them, accounting for 40% of lanes
7 (05:45) **How Retailers Measure Success** - Sarah Alloy (Publicis Sapient) describes tracking time in store, checkout speed, scan rates, and error frequency; admits self-checkout "doesn't necessarily create an affordance every time"

+ Full timestamped outline available in the app

Show Notes

Grocery stores have turned shoppers into cashiers. Zachary Crockett runs two bags of chips and a Gatorade over the scanner. This episode was originally published on June 2nd, 2024.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.