QUESTION18
When John went grocery shopping last week, he bought 10 units of good A when the price of good B was $5. This week, Eric purchased 16 units of good A when the price of good B was $8. Assuming all other factors are constant, what can we conclude about good A? Good A is a normal good.
Good A is an inferior good.
Demand for Good A is inelastic.
Demand for Good A is unit-elastic.
Demand for Good A is elastic.
Good A is a substitute for good B.
Good A is a complement to good B.
Good A is a Giffen good.
QUESTION19
All other things equal, the demand for a good tends to be more inelastic, the more substitutes that are available.
The longer the time period considered.