[uncitizen]

More money in savings accounts means the banks have more money to lend. The borrowers of that money will presumably spend it on something or invest it.

[sharktrager]

Actually, savings would not have that impact.

Money which is not saved is either spent or invested. In either case, 100% of the funds are placed in to circulation. However, a bank is only allowed to lend a percentage of what they have on deposit. As a result, less than 100% of money in savings is then spent or invested..