Which is an example of a positive externality?

The social costs of gasoline equal

Wealthy superstars like Beyonce hire private security guards because the

Households in Kelowna are charged $1 per bag to remove garbage each week. If the true cost of removing the garbage is actually 80 cents per bag,

Fraser International College solved its smoking problem by giving each student five smoking permits a day, and allowing trading. This is an example of

Tim Horton's coffee cups litter downtown Vancouver, creating a negative externality. In this situation, the

A free-rider is someone who does not have to pay for the external benefits from a negative externality.

When your father plants beautiful flowers in front of your house, the whole neighbourhood look more attractive. This is a(n) ________ externality. If this externality were properly priced, your father would plant ________ flowers.

An externality is