... you have to control closely your purchases.

As everybody does (because inflation is for everyone) Carrefour and others will start to lose money (because nobody buy their goods and started to have problems with stock). So in some point they will go down on prices to sell the stock and get critical mass (it is worthy to get a penny from 1 million people than 1 pound from only 1 hundred).

It sounds nice simplified, but it takes time and hurts.
It is like poker, "I will not buy", "yes, you wil do", "no, I will not until you dont get down your prices", "I will not do and you will finally come because you like my goods..."

The one stronger wins.

LOL - what a simplification - LOL

War looking for peace,
is like fornication looking for virginity.