The performance of the American stock market is perhaps…

““The performance of the American stock market is perhaps best measured by comparing the total returns on stocks, assuming the reinvestment of all dividends, with the total returns on other financial assets such as government bonds and commercial or Treasury bills, the last of which can be taken as a proxy for any short-term instrument like a money market fund or a demand deposit at a bank. The start date, 1964, is the year of the author’s birth. It will immediately be apparent that if my parents had been able to invest even a modest sum in the US stock market at that date, and to continue reinvesting the dividends they earned each year, they would have been able to increase their initial investment by a factor of nearly seventy by 2007. For example, $10,000 would have become $700,000. The alternatives of bonds or bills would have done less well. A US bond fund would have gone up by a factor of under 23; a portfolio of bills by a factor of just 12. Needless to say, such figures must be adjusted downwards to take account of the cost of living, which has risen by a factor of nearly seven in my lifetime. In real terms, stocks increased by a factor of 10.3; bonds by a factor of 3.4; bills by a factor of 1.8.””

— Niall Ferguson