How Stocks Work Full Size Verison Share | Have A Question About This Topic? Address Thank you! Oops! Related Contents It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio. The Ivory Tower Changes Wall Street Thanks to the work of three economists, we have a better understanding of what determines an asset’s price. Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.