<P> All coins in the Decrees and the Edict were valued according to the denarius, which Diocletian hoped to replace with a new system based on the silver argenteus and its fractions (although some modern writers call this the "denarius communist", this phrase is a modern invention, and is not found in any ancient text). The argenteus seems to have been set at 100 denarii, the silver - washed nummus at 25 denarii, and the bronze radiate at 4 or 5 denarii . The copper laureate was raised from 1 denarius to 2 denarii . The gold aureus, was revalued at at least 1,200 denarii (although one document calls it a "solidus" it was still heavier than the solidus introduced by Constantine a few years later). </P> <P> During the previous decades the decreasing amount of silver in the billon coins had fuelled inflation . This inflation is understood to be the reason the decree was issued . Issues of economic system feedback were not well understood at the time . </P> <P> The first two - thirds of the Edict doubled the value of the copper and billon coins, and set the death penalty for profiteers and speculators, who were blamed for the inflation and who were compared to the barbarian tribes attacking the empire . Merchants were forbidden to take their goods elsewhere and charge a higher price, and transport costs could not be used as an excuse to raise prices . </P> <P> The last third of the Edict, divided into 32 sections, imposed a price ceiling--a list of maxima--for well over a thousand products . These products included various food items (beef, grain, wine, beer, sausages, etc .), clothing (shoes, cloaks, etc .), freight charges for sea travel, and weekly wages . The highest limit was on one pound of purple - dyed silk, which was set at 150,000 denarii (the price of a lion was set at the same price). </P>

Who set up the tetrarchy and issued an edict of prices