Smart use of "variables" can lead to right answers for retirement

If you think back to your math classes in high school or college, you may remember that many of the problems involved the use of variables. Changing these variables around in any fashion would change the outcome of the problem. Similar situations occur in life all the time. To illustrate: If you look at the need to manage your retirement income so that you can’t outlive it as a “problem” to be solved, you will need to adjust some variables to arrive at the solution you seek. That’s why it’s so important you be aware of the key variables involved in your retirement income planning.

What are som...