Power of Compound Interest – A Case Study
Over at MarketWatch recently, was an interesting article entitled Make Your Kid Rich for $1 a Day. I’ll let you go over there and read the particulars if you are interested. However, I think that the concept provides a great way to study the phenomenon of compound interest, and the elements that go into it. Compound Interest Only Works Over Long Periods People love to quote Albert Einstein saying that the most powerful force in the universe is compound interest. What most people forget is, that as a physicist, Mr. Einstein was used to working on a very large scale, with a very long timeframe. Let’s start at the beginning. Compound interest is not magical. It is merely the phenomenon of earning interest on your previously earned interest. So, if you invest $10,000 and earn 10 percent interest annually, then you would earn $1,000 in interest, and have $11,000 at the end of the year. (Sort of, depending on how interest is paid and compounded, but let’s not quibble.) The following year, you would also earn the same 10 percent interest. However, this time, you earn 10 percent on $11,000, not just the original $10,000. In other words, you are …