What would be the impact on a stock market (index) if any of the following actual situations happened?

❏ Investors weighed evidence that the global economic slowdown was deepening

❏ Investors were disappointed by major firms’ announcements that their sales expectations were not met

❏ Investors learned that the US unemployment rate kept rising throughout 2008 (currently standing at 7.6%)
❏ Investors learned that crude oil prices sank to a 3½-year low (in December 2008)