Question

The market demand curve

a. slopes upward.

b. is found by vertically adding the individual demand curves.

c. represents the sum of the quantities demanded by all the buyers at each price of the good.

d. represents the sum of the prices that all the buyers are willing to pay for a given quantity of the good.

When we move along a given demand curve,

a.

all nonprice determinants of demand are held constant.

b.

only price is held constant.

c.

all determinants of quantity demanded are held constant.

d. income and price are held constant.

When the price of a good or service changes,

	a.	there is a movement along a given demand curve.
	b.	the demand curve shifts in the opposite direction.
	c.	the supply curve shifts in the opposite direction.
	d.	the demand curve shifts in the same direction.