I've seen this study before from another source, and it seemed pretty clear the answer was "Savings Account", as opposed to checking account or investments. If

I've seen this study before from another source, and it seemed pretty clear the answer was "Savings Account", as opposed to checking account or investments. If that's the case here, then this is a beyond-vapid statistic. Savings accounts are worthless. $1000 in my savings account will, after ten years, earn me $5 in interest.