We recently conducted a short survey of our Dick Davis Investment Digest subscribers. Several common concerns were market volatility and economic uncertainty (which I wrote about two weeks ago here). Today, I want to address a third common refrain. As a subscriber from Texas put it: “Maximize dividend income while preserving capital.” Two other respondents complained about the low interest rates on fixed income investments. Howard B. wrote that he would like help “finding the highest possible yield with investment grade or high credit quality. I am looking for a combination of appreciation and current cash flow yields.” Charles...