Ch. 4 Supply Flashcards
Define the law of supply
As the price of a good/service/resource rises, the quantity supplied will increase, and vice versa. All else held constant
Define diminishing marginal productivity
The principle that if at least on input of production is fixed, the marginal productivity of additional variable resources will eventually fall, all else held constant.
Define supply schedule
a table representation of the relationship between the price of a good/service/resource and the quantities producers are willing and able to supply over a fixed time period, all else held constant
Define supply curve
a graphical representation of the representation of the relationship between the price of a good/service/resource and the quantities
Define quantity supplied
The quantity of a good, service or resource that producers are willing and able to supply at a given price
On a supply graph, what are the axes and where are they located?
Price goes on the vertical axis, quantity goes on the horizontal
How is the law of increasing opportunity costs part of the explanation behind the law of supply?
All else held constant, firms will be willing and able to produce more output only when prices rise, because their opportunity cost of production is increasing.
Give an example of how the law of increasing opportunity costs is part of the law of supply?
In the Bakken oil region when gas prices were low, there were 66 rigs in that area. But when gas prices increased, there were over 200. But when gas prices lowered, oil companies shut down the least productive rigs first. These rigs had a higher marginal cost, and as prices fell they were too expensive to operate
When firms have increasing opportunity costs in production, what happens?
An increase in prices allows them to increase their production, and falling prices require then to decrease production.
When economists refer to the supply of a good, service or resource, they are referring to what?
The sum of the individual supply curves added together.
Define Market supply
the overall or total supply of a good/service/resource. It represents the horizontal summation of the quantities supplied by individuals, firms, states or even nations at each price over a fixed time period, all else held constant
What causes the supply curve to shift to the right?
For example, if the price of oil (an input into gas production) decreases, firms will be able to produce more gasoline regardless of price because of the cost of producing gas. As a result, the supply of gasoline increases and the supply curve shifts to the right.
What causes the supply curve to shift to the left?
If the price of milk (an input into cheese production) increases, cheese production costs more, no matter what the market price of cheese is. As a result, the supply of cheese decreases and the supply curve shifts to the left
Define a shift in supply
A change in the quantity of a good/service supplied at every price. Graphically, an increase in supply is represented by a rightward shift of the supply curve, while a decrease in supply is represented by a leftward shift of the supply curve.
Define movement along a supply curve
A change in the quantity of a good/service supplied due to a change in its price. Graphically, this change is represented as a movement along an existing supply curve