Consider two ways of commuting in a crowded city: taking public transportation, such as subway and buses, or driving your own car. A person who chooses to take public transportation in a crowded city imposes a NEGATIVE OR POSITIVE externality on drivers. A policy implication of this result is a SUBSIDY FOR OR TAX ON those who take public transportation. Persons who choose to drive their own cars to get around in a crowded city impose a NEGATIVE OR POSITIVE externality on other drivers. A policy implication of this result is a TAX ON OR SUBSIDY FOR those who drive their own cars.

Answer and Explanation:

An individual who decides to take public transportation in a crowded city puts drivers on a POSITIVE externality. A policy implication of that outcome is a SUBSIDY for those taking public transport.

Many drivers are enforcing a NEGATIVE externality on people who want to drive their own cars to get around in a crowded city. A policy implication of that outcome is a TAX on those driving their own cars.

they work in some type of way

answer: b. false

the staff is a set of five horizontal lines and four spaces which represent a different musical pitch. the lines and the spaces are numbered from bottom to top, the bottom line is the first line and the fifth line is the line on the top. the notes on the top of the staff (fifth line) have a higher pitch than a note at the bottom of the staff.