In Belgium at least, maximum price for bread do exist
But bakeries are going out of business because of high prices for labour, wheat and gas.
They try to set fix prices for gas and wheat, but this has to be coordinated with other countries, and there are stakeholders and lob groups that oppose.
Fortunately gas is replaceable by electricity, witch can be sustainable procured by solar panels.
Wheat is very dependent of fuel and labour.
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