Respuesta :
A demand curve for a public good is determined by summing vertically the individual demand curves for the public good. Thus, the correct answer is option a.
What is a demand curve?
The relationship between the cost of an item or service and the quantity demanded over a specific time period is represented graphically by the demand curve. The price is shown on the left vertical axis, the quantity demanded on the horizontal axis.
Public commodities are products or services that can be used by many people simultaneously without reducing their value to any one of the users. Non-rivalry is a fundamental property of public goods, which allows for multiple consumers of the same commodity without lowering its value.
Non-rivalry means that the aggregate demand curve for the public good is obtained by vertically summing the individual demand curves for the public good if each individual has a demand curve for the good.
Therefore, summing vertically the individual demand curves for the public good, gives the market demand curve for public goods.
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