Final answer:
Stocks have more potential for higher returns due to higher risk compared to bonds.
Step-by-step explanation:
Stocks have more potential for higher returns than bonds because they carry higher risk. Over a sustained period of time, stocks have an average return higher than bonds, and bonds have an average return higher than a savings account. This is due to the fact that stock values can grow or decline by a large amount, resulting in higher potential returns.
For example, the S&P 500 increased 26% in 2009 after declining 37% in 2008. On the other hand, the value of a bond, which is influenced by interest rate fluctuations, varies less than a stock, but more than a savings account.