To an economist, utility means:

Which of the following would shift the supply curve for energy drinks to the left?

A) a decrease in the number of firms that produce energy drinks B) an increase in consumer income (assuming that energy drinks are normal goods) C) a decrease in the expected future price of energy drinks D) a decrease in the price of an input used to produce energy drinks

If Joe buys a coffee at Starbucks, his money serves as a

A) unit of accounting. B) standard of deferred payment. C) store of value. D) medium of exchange.