I'd quibble with the notion that income from rental properties are somehow more "guaranteed" than dividends. Vacancies, cash flow disruptions from repairs, etc . . . But, back to our regularly scheduled discussion.. . . how much of people's income comes from market returns (dividends, capital gains, sale of principal) and how much from "guaranteed" income streams not directly related to the stock or bond markets, like SS, pensions, SPIA, CD interest and perhaps even rent.