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...