Although most citizens have access to police protection, they also take measures, such as putting locks on their doors, to protect themselves. we can explain this because police protection is a(n) ________ good, while self-protection is a(n) ________ good.
Because police protection is a "Public" good, while self-protection is a "Private" good.
A public good simply is something to which everyone has
access to under the condition that his consumption does not make it unavailable
for others as opposed to a private good which is exclusive to the one who have
paid for it.