It is well-documented that a significant portion of the historical equity returns are a result of reinvested dividends. In
Triumph of the Optimists: 101 Years of Global Investment Returns (2002), the authors looked at equity returns from capital gains and dividends from 1900 to 2000. They determined that performance in any given year was driven by capital appreciation, but long-term returns were largely the result of reinvested dividends. Looking at 101 years of data in the U.S. and U.K., they found that a market-oriented portfolio with dividends reinvested would have generated nearly 85 times the wealth of the same portfolio relying solely on capital gains.