1) The document discusses dividend yield, which is a ratio that indicates the percentage return an investor can expect from dividends based on the current market price of a share. 2) Companies with high dividend yields often have poor growth prospects and do not reinvest enough earnings into future growth. 3) High growth companies usually pay lower dividends initially but offer greater capital appreciation and higher future dividends as their businesses expand. 4) Investors are generally better off focusing on capital appreciation rather than current dividends to achieve higher total returns over the long run.