Just after the price of canned tuna fish fell, Isabelle got a raise. She wound up buying less canned tuna. How can we explain
this?
For Isabelle, canned tuna is an inferior good, and the leftward shift of her demand curve more than offset the movement
down and to the right along her demand curve.
For Isabelle, canned tuna is a normal good, and the rightward shift of her demand curve reinforced the movement down
and to the right along her demand curve.
For Isabelle, canned tuna is an inferior good, and the rightward shift of her demand curve more than offset the
movement up and to the left along her demand curve.
For Isabelle, canned tuna is a normal good, and the leftward shift of her demand curve more than offset the movement
up and to the right along her demand curve.