Q: Which formula correctly calculates total surplus in a market?

$$\text{Total Surplus} = \text{Consumer Surplus} + \text{Producer Surplus}$$

Question 1

Which of the following best describes the role of markets in coordinating smart choices between buyers and sellers?

Accepted Answer

Markets connect buyers and sellers, allowing voluntary exchange that benefits both parties.

Question 2

According to Adam Smith's concept of the 'invisible hand,' what is the outcome when individuals pursue their own self-interest in a well-functioning market?

Accepted Answer

Individuals unintentionally promote the welfare of society.

Question 3

Suppose the market for tattoos is in equilibrium. If the price is set below the equilibrium price, what will occur?

Accepted Answer

A shortage will develop, causing prices to rise.

Question 4

Which equation represents the market-clearing (equilibrium) condition in a competitive market?

Accepted Answer

$$Q_d = Q_s$$

Question 5

If the price of pig feed increases, what is the most likely effect on the equilibrium price and quantity of bacon, assuming all else is constant?

Accepted Answer

Equilibrium price increases, equilibrium quantity decreases.

Question 6

Which of the following best defines consumer surplus?

Accepted Answer

The difference between the price a consumer is willing to pay and the price actually paid.

Question 7

Producer surplus is represented by which area on a supply and demand graph?

Accepted Answer

The area below the market price and above the supply (marginal cost) curve.

Question 8

What is the effect on equilibrium price and quantity when both demand and supply increase simultaneously?

Accepted Answer

Equilibrium quantity increases, but the effect on equilibrium price is indeterminate without more information.

Question 9

Which formula correctly calculates total surplus in a market?

Accepted Answer

$$	ext{Total Surplus} = 	ext{Consumer Surplus} + 	ext{Producer Surplus}$$

Question 10

If a market produces too little of a good compared to the efficient quantity, what is the result?

Accepted Answer

Deadweight loss occurs, reducing total surplus.

Question 11

Which of the following scenarios would most likely cause a rightward shift in the demand curve for bacon?

Accepted Answer

A popular cooking show features bacon in every episode.

Question 12

Suppose the supply curve for tattoos shifts leftward due to new regulations. What is the most likely effect on equilibrium price and quantity?

Accepted Answer

Equilibrium price increases, equilibrium quantity decreases.

Question 13

Which of the following best describes the concept of deadweight loss?

Accepted Answer

A reduction in total surplus compared to the economically efficient outcome.

Question 14

If marginal benefit ($$MB) is $$greater than marginal cost ($$MC) at a $$given quantity, what should happen to production?

Accepted Answer

Production should increase to reach efficiency.

Question 15

Which of the following is NOT a factor that can shift the supply curve?

Accepted Answer

Change in consumer preferences.

Question 16

A decrease in both demand and supply for a product will have what effect on equilibrium quantity?

Accepted Answer

Equilibrium quantity will decrease.

Question 17

Which of the following best describes an efficient market outcome?

Accepted Answer

It maximizes total surplus and covers all opportunity costs of production and consumption.

Question 18

If the supply of a product increases while demand remains unchanged, what happens to equilibrium price and quantity?

Accepted Answer

Equilibrium price decreases, equilibrium quantity increases.

Question 19

Which of the following equations represents the condition for economic efficiency in production?

Accepted Answer

$$MB = MC$$

Question 20

If a market produces more than the efficient quantity, what is the result?

Accepted Answer

Deadweight loss occurs due to overproduction.

Coordinating Choices: Demand and Supply in Microeconomics

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