A rival good is a good that can only be consumed by one person; it cannot be simultaneously experienced by multiple users. b. A non-excludable good is a good that, once created, cannot be withheld from people who do not pay for it. For each good, choose the correct answer that applies for each column: Good Is this a rival good? Is this an excludable good? No Is this a public good? No No Downloadable Software Box of cereal Yes Yes Yes No Yes National Defense Fish in the Ocean No Public Park Yes Why won't private individuals voluntarily pay for public goods? Since public goods are non-excludable , once they are created, non-contributors can't be prevented from using them; and since public goods are free , non-contributors will get to enjoy these goods if someone else provides them.
The Correct Answer and Explanation is :
For the table you provided, here’s the breakdown of the goods and whether they are considered rival or excludable, as well as whether they qualify as public goods:
- Downloadable Software:
- Rival Good: No. Downloadable software is generally not a rival good. Multiple people can download and use the software at the same time.
- Excludable Good: Yes. It is excludable because access to the software can be restricted, and people have to pay to access it (for example, through licensing).
- Public Good: No. Since it is excludable (you can prevent people from using it without paying), it is not a public good.
- Box of Cereal:
- Rival Good: Yes. A box of cereal is rivalrous, meaning if one person eats from the box, there’s less for others.
- Excludable Good: Yes. It is excludable because you can prevent others from having the box if they don’t pay for it.
- Public Good: No. It is not a public good because it is both rivalrous and excludable.
- National Defense:
- Rival Good: No. National defense is not rivalrous; it benefits all citizens, whether or not they pay taxes.
- Excludable Good: No. It is non-excludable because people cannot be excluded from the protection of national defense if they don’t pay taxes.
- Public Good: Yes. National defense is a classic example of a public good because it is both non-rival and non-excludable.
- Fish in the Ocean:
- Rival Good: Yes. Fish in the ocean are rival goods because if one person catches a fish, it is no longer available for someone else.
- Excludable Good: No. Fish in the ocean are non-excludable because it’s difficult to prevent people from catching fish, especially in international waters.
- Public Good: No. While fish in the ocean may be a common resource, they do not meet the criteria for being a public good because they are rivalrous.
- Public Park:
- Rival Good: No. Public parks are generally not rivalrous. Multiple people can use the park at once without diminishing others’ enjoyment.
- Excludable Good: No. Public parks are non-excludable, as they are typically open to anyone without a charge.
- Public Good: Yes. Public parks are considered public goods because they are both non-rival and non-excludable.
Why won’t private individuals voluntarily pay for public goods?
Private individuals are generally unwilling to pay for public goods voluntarily because these goods are non-excludable. This means that once the good is provided, it benefits everyone, including those who didn’t contribute financially. This results in a “free-rider” problem where individuals may choose not to pay, knowing they can still enjoy the benefits of the good without contributing. The absence of financial incentive for individuals to pay for the good means that the market may fail to provide the good efficiently, which is why governments often step in to fund and provide public goods like national defense and public parks.
This explanation emphasizes the key aspects of non-excludability and the free-rider problem, which are central to understanding why public goods typically require collective funding rather than relying on private provision.