The above figures show the market for gasoline. Which figure shows the effect of the end of a nine month strike by workers at all U.S. oil refineries?

A worker is unemployed if he:

A) has been working part-time and has been actively looking for full-time work. B) does not have a job and is not actively looking for a job. C) is working from home and drawing a weekly salary. D) does not have a job and has been actively looking for one in the prior four weeks and is available for work.

Which of the following might be a way that an automobile driver's pollution costs could be internalized?

A) The driver could purchase abatement equipment for her car. B) The state could eliminate the gas tax. C) The state could pay a gas subsidy for everyone who drives. D) The state could allow her to drive in the HOV lane.