A roller coaster operator produces thrill-packed rides using electricity and a roller coaster. For the roller coaster operator, electricity is

Assume that in recent years the cost of producing microbrew beer in the U.S. has decreased largely due to technological improvements. At the same time, more and more Americans prefer microbrew beer over wine

Which of the following best explains the effect of these events in the microbrew beer market? A) Both the supply and demand curves have shifted to the right. As a result, there has been an increase in both the equilibrium price and the equilibrium quantity. B) Both the supply and demand curves have shifted to the right. As a result, there has been an increase in the equilibrium quantity and an uncertain effect on the equilibrium price. C) The supply curve has shifted to the left and the demand curve has shifted to the right. As a result, there has been an increase in the equilibrium price and an uncertain effect on the equilibrium quantity. D) The supply curve has shifted to the right and the demand curve has shifted to the left. As a result there has been a decrease in the equilibrium quantity and an uncertain effect on the equilibrium price.

In a put options contract, the

A) seller has the obligation to receive the instrument at a specified time. B) buyer has the obligation to deliver the instrument at a specified time. C) buyer has the obligation to receive the instrument at a specified time. D) seller has the obligation to deliver the instrument at a specified time.