If your consumption of a good does not impact another person's ability to consume it, then that good is considered to have this characteristic.

National Defense can best be classified as this specific type of good.

Unemployment Benefits is this type a good

Suppose that you and some fellow students are placed in a group for a group project. One of the students decides not to do any of the work and let everyone else finish the project. This person, in economic terms, could be considered this.

You are able to prevent someone from driving your car by simply locking the doors. This implies that your car has this characteristic.

Both an Excludable Good and a Rival Good.

A muffin

A nation's use of military is this type of good

A private good has these two characteristics.

Cannot prevent others from using the good.

Military Security is this type good

Public Goods are financed by this

If a good is excludable, but non-rival, then it could best be considered this type of good.

Cannot be effectively excluded from use.

Public Sanitation is this kind of good

Free Riders consume..?

A person who receives the benefit of a good but does not pay for it.

A movie ticket is this type of good

An Airplane ride is this type of good

Non-payers can enjoy the benefits of consumption at no financial costs to them