Exercises
What is the definition of volatility?
How can you measure risk (volatility)?
What are the issues related to the widely used definition of risk (standard deviation)?
How can you test whether stock returns follow a normal distribution? For the following given set of stocks, test whether they follow a normal distribution:
Company name
Ticker
Dell company
DELL
International Business Machine
IBM
General Electric
GE
Microsoft
MSFT
Google
GOOG
Family Dollar Stores
FDO
Apple
AAPL
Wal-Mart Stores
WMT
eBay
EBAY
McDonald's
MCD
What is the lower partial standard deviation? What are its applications?
Choose five stocks, such as DELL, IBM, Microsoft, Citi Group, and Walmart, and compare their standard deviation with LPSD based on the last three-years' daily data.
Is a stock's volatility constant over the years? You could choose International Business Machine (IBM) and Walmart (WMT) to test your hypothesis.
What is an ARCH (1) process?
What is a GARCH (1,1) process?
Apply the...