Consider community safety or defense, meaning freedom from crime and threats, to answer the following questions.
a. What sort of good is community safety?
b. If you lived in a place with no government-funded police force, would you expect community safety to be oversupplied or undersupplied?
c. Suppose that some neighbors get together and organize a block watch group. What term do economists use to describe someone who lives in the neighborhood but chooses not to volunteer as part of the block watch?