Use data from finance.yahoo.com to answer the following questions:

a. Collect the following data for 25 firms of your choosing.

i. Book-to-market ratio.
ii. Price–earnings ratio.
iii. Market capitalization (size).
iv. Price–cash flow ratio (i.e., market capitalization/operating cash flow).
v. Another criterion that interests you.
You can find this information by choosing a company and then clicking on Statistics. Rank the firms based on each of the criteria separately, and divide the firms into five groups based on their ranking for each criterion. Calculate the average rate of return for each group of firms.
Do you confirm or reject any of the anomalies cited in this chapter? Can you uncover a new anomaly? Note: For your test to be valid, you must form your portfolios based on criteria observed at the beginning of the period. Why?

b. Now form stock groups that use two criteria simultaneously. For example, form a portfolio of stocks that are both in the lowest quintile of price–earnings ratio and in the highest quintile of book-to-market ratio. Does selecting stocks based on more than one characteristic improve your ability to devise portfolios with abnormal returns? Repeat the analysis by forming groups that meet three criteria simultaneously. Does this yield any further improvement in abnormal returns?