Klipper in en OT från Warren Buffet där han förklarar varför man inte långsiktigt kan förvänta sig mer än 7-8%, vilket också stämmer med S&P500 utveckling 1950-2009.
“The economy, as measured by gross domestic product, can be expected to grow at an annual rate of about 3 percent over the long term, and inflation of 2 percent would push nominal GDP growth to 5 percent, Buffett said. Stocks will probably rise at about that rate and dividend payments will boost total returns to 6 percent to 7 percent, he said.”
“The Standard & Poor’s 500 Index, a benchmark for U.S. stocks, surged 18 percent a year on average from 1982 to 1999. The bull market tainted investor expectations, Buffett said. Polls in the late 1990s showed some investors expected stocks to gain 14 percent to 15 percent a year, he said.
“‘Thinking that in a low-inflation environment is dreaming,’ he said.”
Beyond that, the long-term data for the stock market points to that 7% number as well. For the period 1950 to 2009, if you adjust the S&P 500 for inflation and account for dividends, the average annual return comes out to exactly 7.0%. Check the data for yourself.
