Companies learn your secrets with data about you

Posted to Statistics  |  Tags: ,  |  Nathan Yau

In the 1980s, students and researchers at UCLA, led by marketing professor Alan Andreasen, found some interesting spending patterns when people approach major life events.

[W]hen some customers were going through a major life event, like graduating from college or getting a new job or moving to a new town, their shopping habits became flexible in ways that were both predictable and potential gold mines for retailers. The study found that when someone marries, he or she is more likely to start buying a new type of coffee. When a couple move into a new house, they’re more apt to purchase a different kind of cereal. When they divorce, there’s an increased chance they’ll start buying different brands of beer.

These findings turned out to be the backbone of work by statistician Andrew Pole, who was hired by Target to analyze their data and increase sales. Somewhere along the way, the marketing department at Target asked Pole if there was a way to predict that a customer was expecting a child. Birth records are freely available, so it’s easy to send baby-related coupons and advertisements to new mothers, but Target wanted first dibs, before that baby came out.

As you might expect, Pole found 25 products that were strong indicators and soon he had an estimate of pregnancies with a pregnancy prediction score.

Pole applied his program to every regular female shopper in Target’s national database and soon had a list of tens of thousands of women who were most likely pregnant. If they could entice those women or their husbands to visit Target and buy baby-related products, the company’s cue-routine-reward calculators could kick in and start pushing them to buy groceries, bathing suits, toys and clothing, as well. When Pole shared his list with the marketers, he said, they were ecstatic. Soon, Pole was getting invited to meetings above his paygrade. Eventually his paygrade went up.

Creepy or just good marketing? I say the latter.

[New York Times | Thanks, Paul]


  • Something Tesco have mastered over recent years; leading to UK market dominance.

  • creepy.

  • Who gives their name when they shop at Target?
    Pay cash!

    If they insist on a name (Radio Shack does, Target does not), lie!
    My name is “Public, John Q.”
    My address is “1234 Main St. Anytown, KS 12345”
    My phone number is 867-5309

    It’s a less-obvious way of saying “None of your business”

  • “just good marketing”? Did you miss that last quote of the article – “Just wait. We’ll be sending you coupons for things you want before you even know you want them.”? If this doesn’t trigger your ‘creepy’ feeling, then your idea what marketing should be is very different from mine.

    I think you are just blinded by science here. The pregnancy predictor is just a single example, and yes, probably not that evil by itself – but it’s really going to get worse. We already have the unpleasant research into where to put the candy in a store to most effectively exploit people’s decision fatigue. We also have the Zynga games designed to hook up people with basic action-reward behavioral loops; some of the most vulnerable (and bored) of those players end up spending thousands of dollars on those games. Just because it’s statistics, it doesn’t mean it’s good.


19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.

Many lists of maps promise to change the way you see the world, but this one actually does.

Who is Older and Younger than You

Here’s a chart to show you how long you have until you start to feel your age.

Watching the growth of Walmart – now with 100% more Sam’s Club

The ever so popular Walmart growth map gets an update, and yes, it still looks like a wildfire. Sam’s Club follows soon after, although not nearly as vigorously.

10 Best Data Visualization Projects of 2015

These are my picks for the best of 2015. As usual, they could easily appear in a different order on a different day, and there are projects not on the list that were also excellent.