Yes, stock market growth is largely driven by the real growth in earnings and dividends. Nominal figures are not adjusted for inflation. "Real" numbers are adjusted for inflation (in economics-speak). The stock market (e.g. S&P 500 index) has real earnings that have consistently grown over time (although earnings are quite volatile). The real dividends paid by the companies that make up the stock market have also gro…
I was discussing low-load index investing with a friend, and the 7% over the last 200 years sounds great. He suggested the hypothesis that that's a reflection of the rise of the United States as a superpower over the last 200 years, and if anything were to impugn the United States' status as the market of refuge, those numbers would not be predictive of consistent long-run returns in the future. That's a hard hypothe…
"Between 1692 and 2018, stock prices increased at an average rate of 1.87% per annum before inflation and 0.36% after inflation, and with reinvested dividends averaging 5.04% per annum, investors received a total return of 6.62% per year. £1"
Now, that being said, during this time frame, clearly the UK is also a western superpower, and after a certain point in time the UK & US stock markets probably have a very strong correlation with the rise of electronic trading/risk management.
For another example of an older equity market, we might look to Japan, which has had a negative rate of return: https://www.afrugaldoctor.com/home/japans-lost-decades-30-ye...
That being said, as we see in that article the monthly $833 purchase DCA still gave a positive return over 30 years.