Systematic versus Unsystematic Risk. Indicate whether the following events might cause stocks in general to change price, and whether they might cause Bid Widget Corp.' stock to change price:

a. The government announces that inflation unexpectedly jumped by 2 percent last month

b. Big Widget's quarterly earnings report, just issued, generally fell in line with analysts' expectations.

c. The government reports that economic growth last year was at 3 percent, which generally agreed with most economists' forecasts.

d. The directors of Bid WIdget die in a plane crash.

e. Congress approves changes to the tax code that will increase the top marginal corporate tax rate. The legislation had been debated for the previous six months.