For many years, Americans provided for their retirement needs through three sources: employer-sponsored pension plans, Social Security income, and savings and investments accumulated through employer plans or individual accounts – the so-called “three-legged stool.” But today, that stool is shakier than it used to be. What can you do to strengthen it?

To begin with, all three legs of the stool are facing challenges. Let’s consider them:

Employer pensions – A generation ago, workers emplo...