Dollar-cost averaging is a technique that many investors have used to build substantial long-term wealth. Often, it works by setting aside a fixed amount of money every month for investment into a mutual fund. Vahan Janjigian, one of the Authors of the Forbes/CFA Institute investment course, spells out how it works and who it works best for: those investors that may not have a lot of wealth, but do have a steady stream of income.

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