Answer: (1) Normal Good
(2) Inferior Good
(3) Increase in his Income Level
Step-by-step explanation:
With no income, Andrew prefer to drink Bean-lightened coffee but once he is able to earn something then he prefers Starbucks coffee. This shows that Bean-lightened coffee is an inferior good for Andrew and Starbucks coffee is a normal good for Andrew.
We know that income of an individual and demand for normal good directly related with each other and on the other hand, income of an individual and demand for inferior good inversely related with each other.
So, the consumption of Starbucks coffee increases as his income increases.