Mr Mugabe has brought the new rules in unilaterally
With Zimbabwe's annual inflation now at more than 7,600% - the highest in the world - the latest move was announced by the state-run Herald newspaper.
Anyone who breaks the freeze, which applies for six months, will get a jail sentence of up to the same length.Shops have previously been told to cut prices, but most have little to sell.
All this to be taken with a grain of piquant salt!!!