I'm guessing this might have changed since you wrote your comment, but the very first sentence does contain a link to the paper.
The paper itself is longer than 2 pages (but not by a lot!) but the "Proof of the main theorem" section is only 2 pages long.
I never noticed, but I can only recall a single instance from a set of 10 or so where that isn't the case.
Any links on related content to the topic?
Moving the cold chain closer to checkout involves additional expenses, so it works more for higher margin products, and ones a bit more forgiving if there's a thaw, like Coke, Monster energy drinks, and canned coffee from Starbucks.
So the question becomes: would you pay 50 cents more for milk from a fridge at checkout, when you can get the same thing at the back?
EDIT: it was the host of econtalk, appearing on NPR Planet money:https://www.npr.org/2014/08/01/337034378/everyone-goes-to-th...