Some of my funds have the primary purpose of generating current income. This article supposes that you have a similar need. Treasury-bond yields do not meet your goals. This leads to a need to look to other, riskier investments. Several categories of investment, such as Preferred Stocks and Closed End Funds, may contribute. From the perspective of diversification, I would say they should contribute. But here the focus is on common stocks.
In the realm of common stocks, and for this portion of my portfolio, I have zero interest in growth stocks. For these funds,