All shredded wheat producers have decided to add a new ingredient, the “crunch
enhancer” to shredded wheat. Crunch enhancer keeps cereals crisper longer in milk and,
as a result, consumers decide they like shredded wheat more than before. What happens
to the supply and demand curves for shredded wheat now that it costs more to produce
and consumers like it better?
A) The supply and demand curves both shift rightward.
B) The supply curve shifts rightward and the demand curve remains unchanged.
C) The supply curve shifts leftward and the demand curve shifts rightward.
D) The supply curve shifts leftward and the demand curve remains unchanged.
E) Neither curve changes but a movement occurs up along the demand curve and a
movement occurs up along the supply curve.
Refer to Fact 14.2.1. Samuel Adams makes the market for beer inefficient if
A) the loss that arises from having greater product variety offsets the gain that arises
because the quantity produced is less than the efficient quantity.
B) more firms enter the market.
C) the loss that arises because the quantity produced is less than the efficient quantity is
not offset by the gain that arises from having greater product variety.
D) firms exit the market.
E) the marginal social cost of production equals the marginal social benefit received by
consumers.