Common resources differ from public goods in that:

A) common resources are resources that cannot be renewed but the production of public goods can be increased any time.

B) common resources are non-excludable while public goods are excludable to those who do not pay for the good.

C) common resources are collectively owned by a group of people while public goods are government owned.

D) unlike public goods, common resources are rival in consumption.

Answer: Option D

Explanation:

Public goods are neither rival in consumption nor excludable.

Common resources are rival in consumption but not excludable

A product is considered to be rivalrous if your consumption of the product reduces the quantity available for others to consume.

An example of a product that is nonexcludable and rivalrous is flu vaccinations.

Water is an example of a common pool resource.

The answer is option

D) unlike public goods, common resources are rival in consumption.

Explanation:

Common Pool Resources are by definition non excludable and rival. Thus, if a good is both non excludable and rival it is a Common Pool Resource or a Common Good, but not a Public Good Common resources are rival in consumption but not excludable.

However, Public Goods can be excludable or rival to varying degrees. Some goods that cause positive or negative externalities are public goods

Public Good and Common Resource are both non-excludable. The main difference is their rivalry property.

Public Goods can be consumed without reducing availability for others, while consuming Common Resources will decrease the available resources for others.

Public Good has free-riders problem (lack of contributions) while Common Goods has "tragedy of the commons problem" (overuse).