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Price floor

Government- or group-imposed price control

  • 10 min read
  • 3 chapters
  • 1 lab on Lably

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Two common price floors are minimum wage laws and supply management in Canadian agriculture. Other price floors include regulated US airfares prior to 1978 and minimum price per-drink laws for alcohol. While price floors are often imposed by governments, there are also price floors which are implemented by non-governmental organizations such as companies, such as the practice of resale price maintenance. With resale price maintenance, a manufacturer and its distributors agree that the distributors will sell the manufacturer's product at certain prices (resale price maintenance), at or above a price floor (minimum resale price maintenance) or at or below a price ceiling (maximum resale price maintenance). A related government- or group-imposed intervention, which is also a price control, is the price ceiling; it sets the maximum price that can legally be charged for a good or service, with a common government-imposed example being rent control.

Effectiveness

A price floor could be set below the free-market equilibrium price. In the first graph at right, the dashed green line represents a price floor set below the free-market price. In this case, the floor has no practical effect. The government has mandated a minimum price, but the market already bears and is using a higher price, this is called a non-binding price floor.

By contrast, in the second graph, the dashed green line represents a price floor set above the free-market price. In this case, the price floor has a measurable impact on the market. It ensures prices stay high, causing a surplus in the market.

In practice, many goods and services are not perfectly identical, real markets experience friction and hysteresis, different participants have different amounts of market power. As a result, prices vary from transaction to transaction. Price floors can thus affect the price of certain transactions but not others, even if they are below the average price. The market price can also vary over time, and a price floor can affect the market price during low periods.

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