A Review of Supply and Demand

What does  $$Q_D$$  represent?

What does  $$Q_S$$  represent?

Which of the following can cause a change in $$Q_D$$ and  $$Q_S$$  for a good/service?

Consumers learn that bananas cause terrible, terrible gas. How will the market for bananas change?

The government decides to give a free car to everyone who buys more than 100 gallons of fuel next year. How will this affect the market for gas?

Pandas learn how to pick peaches, and through a skilled interpreter, exclaim their desire to work in agricultural fields for free. How will this affect the market for peaches?

WD-40 and butter are substitutes. The price of WD-40 increases. How will this affect the market for butter?

Global warming causes half of the coffee plants around the world to die. What will happen to the market for Starbucks Frappuccinos?

Mr. Trott makes the next test for the freshmen worth 50% of their semester grade. What will happen to the market for test answers?

Tears and essays are compliments in production. If the grade value of essays increases, what will happen to the market for test answers?

Milk frothers and milk are complementary goods. What will happen to the market for milk frothers if the price of milk increases?