Outside the Box: Want to beat the stock market over the next decade? Add bonds to your portfolio

The death of the 60/40 portfolio has been widely accepted as growth and technology stocks overwhelmed gains in fixed-income securities since the end of the financial meltdown over 10 years ago.

However, it is highly likely that such an allocation — 60% stocks and 40% bonds — will outperform an all-equity index over the next decade.

While…