Question

An externality arises when a firm or person engages in an activity that affects the wellbeing of a third party, yet neither pays nor receives any compensation for that effect. If the impact on the third party is beneficial, it is called a positive externality.The following graph shows the demand and supply curves for a good with this type of externality. The dashed drop lines on the graph reflect the market equilibrium price and quantity for this good.Shift one or both of the curves to reflect the presence of the externality. If the social cost of producing the good is not equal to the private cost, then you should shift the supply curve to reflect the social costs of producing the good; similarly, if the social value of producing the good is not equal to the private value, then you should shift the demand curve to reflect the social value of consuming the good.With this type of externality, in the absence of government intervention, the market equilibrium quantity produced will be (greater, less) than the socially optimal quantity.Which of the following generate the type of externality previously described? Check all that apply.1.The city where you live has turned the publicly owned land next to your house into a park, causing trash dropped by park visitors to pile up in your backyard.2.Your roommate, Valerie, has bought a puppy that barks all day while you are trying to study economics.3.Manuel has planted several trees in his backyard that increase the beauty of the neighborhood, especially during the fall foliage season.4. A leading electronics manufacturer has discovered a new technology that dramatically improves the picture quality of plasma televisions. Firms of all brands have free access to this technology.

Answer 1

Answer:

(A) It is a Positive externality if the effect on third parties is beneficial.

(B) With positive externality, the social interest exceeds private interest, hence the demand curve shifts as seen attached.

(C) In the absence of interference, the quantity of market equilibrium would be less than the quantity which is socially optimal.

(D) Examples follow:

• Leading software corporation agrees to raise the budget for open-source development research.
• Nick planted numerous trees.

Answer 2

A. It is a Positive externality and third parties are beneficial

B. The demand curve shifts as seen attached.

What is the Demand Curve?

(A) It is a Positive externality if the consequence on third parties is beneficial.

(B) With positive externality, When the social interest exceeds private interest, therefore, the demand curve shifts as seen attached.

(C) In the scarcity of interference, the quantity of market equilibrium would be less than the socially optimal quantity.

(D) Examples observe:

Leading software corporation decides to raise the budget for open-source development research. Then Nick planted numerous trees.

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