If a stock price follows a Markov process which of the following could be true
A. Whenever the stock price has gone up for four successive days it has a 70% chance
of going up on the fifth day.
B. Whenever the stock price has gone up for four successive days there is almost certain
to be a correction on the fifth day.
C. The way the stock price moves on a day is unaffected by how it moved on the
previous four days.
D. Bad years for stock price returns are usually followed by good years.
Which of the following is true of Creditmetrics when it is used to calculate credit VaR
A. Creditmetrics takes defaults but not downgrades into account
B. Creditmetrics takes downgrades but not defaults into account
C. Creditmetrics considers neither defaults nor downgrades
D. Creditmetrics considers both defaults and downgrades