Problem solutions to ch 8
LG3 8-1 Stock Index Performance On October 9, 2007, the Dow Jones Industrial Average
set a new high. The index closed at 14,164.53, which was up 120.80 that day. What was the return (in percent) of the stock market that day?
FV = PV × (1 + i)
14,164.53 = (14,164.53 - 120.80) × (1 + i)
i = (14,164.53 / 14,043.73) - 1 = 0.86%
LG3 8-2 Stock Index Performance On March 9, 2009, the Dow Jones Industrial Average reached a new low. The index closed at 6,547