1. Income distribution A top concern among retirees is running out of money, so it’s critical to take steps to make your money last. But how do you do that, especially now that the once-popular 4% rule is falling out of favor in some quarters? Dr. David Babbel, professor of finance at the Wharton School, puts it this way: “If you have a stock portfolio and withdraw a fixed amount per year, such as the standard rule of 4% plus inflation, you have a 90% chance of running out of money in retirement.” While it would be nice to think a magic-bullet investment exists that could fix this prob...