Determine the effects of the following events on the price and quantity of beer sold. Assume that beer is a normal good.
a. The price of wine, a substitute for beer, decreases.
b. The price of pizza, a complement to beer, increases.
c. The price of barley, an ingredient used to make beer, increases.
d. Brewers discover they can make more money producing wine than they can producing beer.
e. Consumers' incomes increase as the economy emerges from a recession