Price controls are usually introduced to make essentials affordable or stop inflation. History shows that they can also produce shortages, substitutions, queues, and unofficial markets.
1. Ancient Rome Created Scarcity
Emperor Diocletian issued an Edict on Maximum Prices in 301 AD, attempting to limit prices across a huge range of goods.
Merchants responded by withdrawing products or selling outside the official system. The policy eventually had to be abandoned.
2. Wartime Britain Created Black Markets
During World War II, Britain controlled prices and rationed many essentials.
The restrictions helped manage scarce supplies, but illegal markets emerged for goods including meat and other rationed products. Scarcity created an incentive to bypass the official system.
3. Wartime Canada Created a New Kind of Shortage
Canada introduced broad price controls during World War II to contain inflation.
The controls were relatively successful at limiting inflation, and black markets were less widespread than in some other countries. But limited black markets emerged after the war when consumer demand exceeded available meat supplies.
4. The U.S. Created “Forced Uptrading”
During World War II, American price controls sometimes encouraged manufacturers to stop producing cheaper versions of products.
Instead, some companies shifted consumers toward more expensive alternatives—a phenomenon researchers called “forced uptrading.”
5. Nixon’s Price Freeze Created Pent-Up Demand
In 1971, President Nixon froze prices, wages, and rents as part of an effort to fight inflation.
Inflation initially fell, but shortages and distortions developed. After controls were dismantled, inflation surged into double digits.
6. Bengal’s Rice Controls Helped Create a Black Market
During the Bengal famine, rice prices were capped below prevailing market levels.
Sellers became reluctant to sell through official channels, while supplies moved into storage or unofficial markets. The result was severe market disruption during an already devastating food crisis.