c. Money supply changes are usually surprise events; Federal Reserve ofcials rarely pro-announce their decisions to alter the quantity of money. However, imagine that the increase in money supply was announced well in advance. On the plot of part b, using a dotted line, plot the impact of the increase in money supply on the requested variables. (15) d. For this part of the question, forget the details of part 0. Instead, many economists have argued that periods of low unemployment have long-term impacts on the economy. For instance, during a period of low unemployment, more people are working and hence, more people are learning jobrelated skills. Even after unemployment returns to its long-run level, these people have skills that can increase their productivity. Assume this theory is correct. 0n the plot of part b, using a dashed line, demonstrate the increase in money supply. (15)