Posts Tagged ‘Grocery’

I must confess that I have never really been enthralled by Trader Joe’s. I have never lived close by one so it was a convenient option for shopping nor have I ever been desperately loyal to their private label products. But there certainly are people who love Trader Joe’s and their stores can be quite busy. As consequence, the check out lines at some locations can be a special sort of experience. McSweeny’s offers a parody “Trader Joe’s Waiting in Line App” asking user to rate their overall shopping experience on the following scale:

  • 4 stars: Took a while, but got what I needed.
  • 3 stars: Eerily friendly cashier weirded me out; there was hardly any bagged lettuce left.
  • 2 stars: Constant gridlock. Teeth gritted the whole time.
  • 1 star: Anarchy. Like the ending of Lord of the Flies.

What does the ending of Lord of the Flies look like? Check out BuzzFeed’s “The Nightmare Of Shopping At Trader Joe’s In Manhattan.” It’s one thing to have to mark where the line starts; it’s another to need a sign marking the middle of the line so clueless (or super-aggressive) shoppers don’t cut the queue.

What then is a shopper to do? According to a recent Slate piece, the answer is to shop while in line (The Six Rules of Line-Shopping at Trader Joe’s, Aug 24).

Not long ago I was waiting in line at the smaller-than-average and perpetually mobbed Trader Joe’s near Union Square in Manhattan when I noticed the shopper in front of me had come up with a clever, possibly devious solution to the crowd problem. Upon entering the store, she claimed a shopping cart and staked out a spot in the checkout line (which snaked around almost the entire perimeter of the store). She proceeded to do all her shopping from her place in line: picking up produce as the line crept through the produce aisle, frozen goods as it passed by the freezer case, cereal when it neared the cereal section.


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I cut my academic teeth doing work on supply chain contracting. I consequently found a BBC report on pay-to-stay payments interesting (Premier Foods accused over ‘pay and stay’ practice, Dec 5). The subject of the report is Premier Foods, a large UK manufacturer with several food brands. Premier had the chutzpah to effectively ask its suppliers for bags of cash. Here is what the firm’s CEO wrote.

[Chief Executive Gavin Darby] wrote: “We are aiming to work with a smaller number of strategic suppliers in the future that can better support and invest in our growth ideas.”

He added: “We will now require you to make an investment payment to support our growth.

“I understand that this approach may lead to some questions.

“However, it is important that we take the right steps now to support our future growth.”

But when a supplier raised questions in an email about the annual payments, another member of Premier’s staff replied.

“We are looking to obtain an investment payment from our entire supply base and unfortunately those who do not participate will be nominated for de-list.”

You can contemplate the lovely Britishness of “nominated for de-list” while watching this video on the subject.

I should note that Premier Foods has since backed off its demand after the negative press following this report (see here).


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Is the express lane in the grocery store always the fastest lane?

That’s a great question and its the subject of a “Dear Mona” column over on FiveThirtyEight (Dear Mona, Which Is The Fastest Check-Out Lane At The Grocery Store?, Oct 16). Mona attacks this question by heading into the queuing theory weeds.

I couldn’t find much research on express lanes specifically, but one paper from Amsterdam found the reduction in wait times for express-lane customers didn’t offset the overall increase in wait times for everyone. Maybe life would be easier if the supermarket didn’t have an express lane — or, better yet, if it got rid of multiple lines altogether and had all customers join a single infinitely sprawling line where there were no winners and losers. That might sound nightmarish, but the math actually suggests it would be anything but.

That math comes from queuing theory, a subject of study that’s been around ever since Danish mathematician Agner Krarup Erlang discovered a method for managing telephone traffic in 1909. To answer your question, I’ve had to take a crash course in (more modern) queuing theory, including examining formulae that calculate how average wait times at the grocery store vary depending on the type of line you join.

I should state upfront Mona on the whole acquits herself quite well on this. But there are a couple of points worth mentioning. First, there in fact supermarkets that run with a single queue, like this Hannaford’s in West Lebanon, NH.


As you can see, that singe serpentine queue ends up chewing up a lot of space at the front of the store. That’s a lot of real estate to give up when you only have two people in line. As we have written about before, that is only one of the complications of having a single queue in a grocery setting.

But let’s suppose for the moment that we can get a single queue to work. Is that in fact the best way to run a supermarket’s checkout? (more…)

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Has Wal-Mart figured out how to do same day delivery? The Wall Street Journal seems to think so — at least within their Mexican operations (Mexico Delivers for Wal-Mart, Feb 20).

Has Wal-Mart really figured this all out? I have my doubts. (more…)

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I love self-service checkout, but it is again under attack. Here in Chicago, Jewel-Osco (one of the major local supermarket chains) is pulling self-service checkout lanes from some of its stores (Jewel scrapping self-checkout at some stores, Chicago Tribune, Sep 25). Their stated goal is to “reconnect personally with all of its customers.” Now the Wall Street Journal is piling on with an article declaring that computers just aren’t up for the job of letting people buy green beans (Humans 1, Robots 0, Oct 6).

The human supermarket checker is superior to the self-checkout machine in almost every way. The human is faster. The human has a more pleasing, less buggy interface. The human doesn’t expect me to remember or look up codes for produce, she bags my groceries, and unlike the machine, she isn’t on hair-trigger alert for any sign that I might be trying to steal toilet paper. Best of all, the human does all the work while I’m allowed to stand there and stupidly stare at my phone, which is my natural state of being. …

In a recent research paper called “Dancing With Robots,” the economists Frank Levy and Richard Murnane point out that computers replace human workers only when machines meet two key conditions. First, the information necessary to carry out the task must be put in a form that computers can understand, and second, the job must be routine enough that it can be expressed in a series of rules.

Supermarket checkout machines meet the second of these conditions, but they fail on the first. They lack proper information to do the job a human would do. To put it another way: They can’t tell shiitakes from Shinola. Instead of identifying your produce, the machine asks you, the customer, to type in a code for every leafy green in your cart. Many times you’ll have to look up the code in an on-screen directory. If a human checker asked you to remind him what that bunch of the oblong yellow fruit in your basket was, you’d ask to see his boss.

Let’s take this in two parts. First, if people prefer a conventional check out experience because that allows them to zone out then I have to wonder how Jewel’s plan to reconnect with its customers is going to work. I remember as a kid my mom having what seemed like endless conversations with cashiers. Of course, we were in a relatively small town and most of the women (they were virtually all woman) working the registers had either gone to high school with my mom or had a sibling who did. Now we live in a more class divided society. I suspect that none of the cashiers at my local Jewel are actually from the neighborhood or that the store’s staffing policies actually build in time for cashiers and customers to catch up on how their respective in-laws are doing.

But what of the claim that the information needed to run checkouts cannot be simply encoded for computers? (more…)

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Way back in the early days of this blog, Gady had a post about queuing innovations at Hannaford Supermarkets, a regional chain of markets serving the Northeast. One of things Gady mentioned was that they were experimenting with having a single line for those waiting to checkout. Having now visited Hannaford’s relatively new store in West Lebanon, NH, I can show you what that looks like:

As Gad’s original post notes, a single checkout line is not a completely new idea for supermarkets. Indeed, Wholefoods’ Columbus Circle store has gotten all sorts of press for its single queue system. I would argue that this is a little bit different. At Wholefoods, a single queue is as much about packing many, many registers into a tight space as it is about efficiently moving customers through. That’s not really true in West Lebanon; this is pretty much your standard, large, suburban American grocery store. In West Leb, a single queue is — as the signs suggest — all about reducing customer waiting times.


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So what is it worth to reduce the use of bags at your local grocery store? OK, so for one store, it may not be worth too much, but if you have over 1,000 stores like Supervalu does, saving a few bags here and there can be real money. Thus the chain has instituted a “rigorous” program to reduce the number of bags used (At Supervalu, Cost Cuts Are in the Bag, Wall St Journal, Mar 23).

The new rules are part of a training program that Supervalu Inc. believes will save it millions of dollars a year by putting more items in each bag or skipping the bag altogether. Plastic bags cost about two cents apiece and paper bags cost five. The Eden Prairie, Minn., operator of Albertsons, Acme Markets and Jewel-Osco stores uses more than 1.5 billion plastic and paper bags a year at about 1,100 stores, not counting its Save-A-Lot discount stores, where customers bring or pay for their own bags. …

Some of the Supervalu guidelines reinforce familiar bagging rules, such as starting the packing at the corners and moving from the outside in. But others break with common practices: No double-bagging. No bags for large items or items with handles, like one-gallon orange-juice containers. Never ask, “Paper or plastic?”—just use plastic bags. The rules can be broken, but only on request. …

The chain averages three to five items a bag, whether the bag is paper or plastic, and sells about 10 billion items annually. Since mid-2009, it has boosted its average items per bag about 5%, saving $4 million to $6 million annually even as prices for plastic bags have climbed, Mr. Siemienas says.


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It’s Thanksgiving so it is time to revisit the question of why heritage birds cost so much more than your standard supermarket bird. This year’s lesson in turkey economics comes from The Atlantic with a post by Bill Niman and Nicolette Hahn Niman of Niman Ranch fame (Heritage Turkeys: Worth the Cost?, Nov 18). Like good locavores, they emphasize that the industrial methods of factory farms result in birds that are in a sense under-priced. Yes, they are cheap on the supermarket shelf, but that doesn’t reflect the full cost they impose on the environment.

But the reason heritage cost so much is largely operational. (more…)

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What is it worth to have visibility in a supply chain? When the consequence of screw ups can be catastrophic and deadly (think pharmaceuticals), it is worth tracking everything from raw materials through to consumption. So why are agricultural products any different? If anything, contaminated spinach or eggs can affect more people than any one prescription drug problem. Why then not trace produce and farm products the same way drug makers follow their products?

The Los Angeles Times reports that a number of tech firms are working with large growers to make such detailed tracking possible (Amid mounting safety concerns, technology helps track food from farm to table, Oct 3).

In general, such trace-back systems work in a way that’s similar to how Federal Express tracks its packages. On the farm, animals and crop sections are given a “smart” label with a unique identifying number. The label is then attached to a bin, crate or container used for transport. Workers then can use a hand-held computer or smart phone to scan the labels and record key information, such as date and time, location, workplace temperature and which truck hauled the food away. The information is usually uploaded to a central online database, where it is stored and can be accessed via the Web. Each time the food moves or is handled by someone new, the data can be updated and recorded.


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At one point or another, we have mentioned nearly every major food retailer in the US. One that has thus far escaped mention is Trader Joe’s. According to an article in Fortune, that’s how the company likes it (Inside the secret world of Trader Joe’s, Aug 23). The company is privately held and generally prefers not to talk about itself. I guess that makes writing an article on the firm a little harder than usual. The story that emerges, however, is pretty interesting. It depicts a firm that has tied its operations very closely to its strategy.

For those unfamiliar with Trader Joe’s, here is how Stephen Dubner (the New York Time’s resident Freakeconomist) put it:

[T]he world is divided into three sets of people.

1. Those who have never been to a Trader Joe’s, and perhaps have never heard of it.

2. Those who love Trader Joe’s more than they love their own families.

3. Those who love Trader Joe’s more than they love their own families and are incensed that there isn’t one nearby.

So Trader Joe’s is more than just a grocery store. It is something special that inspires loyalty. What is interesting about that is that as grocery stores go, it is pretty limited. As the article notes, a typical family cannot do all its shopping here even if wanted to. Being a loyal Trader Joe’s shopper means having to go to some other store as well. The question then is how does the firm offer enough value to justify coming in on a regular basis? First, somewhat counterintuitively, it limits its selection:

Trader Joe’s has a deliberately scaled-down strategy: It is opening just five more locations this year. The company selects relatively small stores with a carefully curated selection of items. (Typical grocery stores can carry 50,000 stock-keeping units, or SKUs; Trader Joe’s sells about 4,000 SKUs, and about 80% of the stock bears the Trader Joe’s brand.) The result: Its stores sell an estimated $1,750 in merchandise per square foot, more than double Whole Foods’. The company has no debt and funds all growth from its own coffers.


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