Earlier quoted context omitted.
Major grocers are more inclined to form cartels on price than to engage in organic competitive action. These businesses are too large and incentives too perverse for free market dynamics to apply anymore.
>Major grocers are more inclined to form cartels on price than to engage in organic competitive action. Even if we take at face value that this is happening, their margins are famously low (ie. low single digits[1][2]) that any improvements are likely negligible. In the best case scenario where they're run as competently/efficiently as a normal grocery store, but don't take any profits, you'd be saving like 50 cents…
Usually if someone steals a millionth of that, they go to jail for a very long time.
The same players are now under investigation for selling underweight meats.