Keynesians believe that an increase in the money supply may lead to

Refer to the scenario above. What is Sarah's opportunity cost of producing one greeting card?

A) 0.33 earrings B) 0.5 earrings C) 1 earring D) 3 earrings

Including marginally attached workers in the calculation of the unemployment rate would

A) increase the reported rate. B) lower the reported rate. C) not change the reported rate. D) change the reported rate, but in an unpredictable manner.