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ECON101 Lecture Notes - Lecture 10: Economic Equilibrium

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1 Oct 2016

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University of Waterloo

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ECON101 Full Course Notes

ECON101 Full Course Notes

Document Summary

Chapter 3 demand and supply lec 2. If the price of a factor of production used to produce a good rises, the minimum price that a supplier is willing to accept for producing each quantity of that good rises. So a rise in the price of a factor of production decreases supply and shifts the supply curve leftward. A substitute in production for a good is another good that can be produced using the same resources. The supply of a good increases if the price of a substitute in production falls. Goods are complements in production if they must be produced together. The supply of a good increases if the price of a complement in production rises. When the price of the good changes and other influences on sellers" plans remain the same, the quantity supplied changes and there is a movement along the supply curve.

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Related Questions

a. State the law of supply.

	Quantity supplied rises as price increases, other things are constant. Quantity supplied falls as price decreases, other things are constant.
	Supply increases as price falls. Supply decreases as price rises.
	Supply increases as price increases. Supply decreases as price decreases.
	Quantity supplied rises as price falls, other things constant. Quantity supplied falls as price increases, other things are constant.

b. Why is price directly related to quantity supplied?

	As price rises, consumers substitute other goods whose price has not risen.
	As price rises, suppliers rearrange their activities to supply more of that good to take advantage of the higher price.
	As price falls, suppliers rearrange their activities to supply more of that good to take advantage of the lower price.
	As price rises, suppliers rearrange their activities to supply more of a substitute good to take advantage of the higher price.

If the price of renting a DVD rises, a ____ the supply curve occurs. If any factor that influences selling plans other than the price changes, then a ____ the supply curve occurs.

a) rightward shift of; movement down along

b. movement up along; shift of

c. movement down along; shift of

d. the leftward shift of; movement up along

The primary difference between a change in supply and a change in the quantity supplied is:
Choose one answer.
a. a change in quantity supplied is a shift in the supply curve, and a change in supply is a movement along the supply curve.
b. both a change in quantity supplied and a change in supply are movements along the supply curve, only in different directions.
c. a change in quantity supplied is a movement along the supply curve, and a change in supply is a shift of the supply curve.
d. a change in supply is a movement to the left along the supply curve and a change in quantity supplied is a movement to the right along the supply curve.

Question 2
What is the difference between a shortage and scarcity?
Choose one answer.
a. Scarcity will always exist because choices must be made, but a shortage will only exist if the price is kept below the equilibrium level.
b. Scarcity is a result of two or more alternative uses and will always exist, and quantities of supply and demand adjusting to flexible prices will create shortages.
c. A surplus will exist when a good is scarce; a shortage merely implies that there isn't as much of something as people would like, which is nearly always the case.
d. There is no distinction between the two. They are the same thing.

Question 3
A decrease in supply means:
Choose one answer.
a. a shift to the left of the entire supply curve.
b. moving downward (to the left) along the supply curve with lower prices.
c. less will be demanded at every price.
d. more will be supplied at every price.

Question 4
A decrease in demand, with no change in supply, will lead to ________ in equilibrium quantity and ________ in equilibrium price.
Choose one answer.
a. an increase; an increase
b. an increase; a decrease
c. a decrease; an increase
d. a decrease; a decrease

Question 5
After graduation from college you will receive a substantial increase in your income from a new job. If you decide that you will purchase more T-bone steak and less hamburger, then for you hamburger would be considered a( n ):
Choose one answer.
a. normal good.
b. substitute good.
c. complementary good.
d. inferior good.

Question 6
There is equilibrium in the market when:
Choose one answer.
a. there is no shortage.
b. there is no surplus.
c. price is established where the supply curve and the demand curve intersect.
d. all of the above are true.

Question 7
Which would not cause the supply curve to shift?
Choose one answer.
a. a change in technology
b. a change in factor costs
c. a change in the price of the good
d. a change in the prices of related goods

Question 8
Given that meat and potatoes are complementary goods, if the price of meat decreases substantially, there would be:
Choose one answer.
a. an increase in the demand for potatoes.
b. an increase in the quantity of potatoes demanded.
c. a decrease in the demand for potatoes.
d. no change in the demand for potatoes.

Question 9
Given that milk and cookies are complements, suppose the price of flour (an ingredient in cookies) rises. What happens in the market for milk?
Choose one answer.
a. The equilibrium price and quantity rise.
b. The equilibrium price rises and the equilibrium quantity falls.
c. The equilibrium price and quantity fall.
d. The equilibrium price falls and the equilibrium quantity rises.

Question 10

A temporary price of $2 in this market would result in:
Choose one answer.
a. a surplus of 8,000 bushels.
b. a shortage of 8,000 bushels.
c. a shortage of 10,000 bushels.
d. a surplus of 10,000 bushels.

Question 11
The price of oranges rises. What happens in the market for apples, which are a substitute for oranges?
Choose one answer.
a. The equilibrium price falls, and the equilibrium quantity rises.
b. The equilibrium price rises, and the equilibrium quantity falls.
c. The equilibrium price and quantity rise.
d. The equilibrium price and quantity fall.

Question 12
A market surplus occurs if the:
Choose one answer.
a. price is below the equilibrium price.
b. price is equal to the equilibrium price.
c. equilibrium price is above the actual price.
d. equilibrium price is below the actual price.