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Re:'Striking weaknesses' in adult financial skills by Double_a_92 on Thursday March 15, 2018 @09:32AM (#16592655)
> labels including the "price per unit weight/volume"

We overestimate the average person. Not everybody knows what that even means. They just don't have a concept of ratios that can be compared.

> go for the cheaper product price.

That might still be a valid option if the packaged quantities differ my a lot. E.g. if I only need 100g of ham for a sandwich, it's not better to buy a whole 1kg piece if that's just going to rot in my fridge.

Re:'Striking weaknesses' in adult financial skills by AnIdiotOnTheNet on Thursday March 15, 2018 @10:21AM (#16593046)
I don't think we overestimate people necessarily, I think we overestimate how much they desire to spend their time thinking about the same things we do.