The annual Barclays gilts-equity study - the bible on investment returns - leaves no doubt about the significance of dividends to savers. It found that £100 invested in shares in 1899 would be worth £142 now. But were the dividend income reinvested in the stock market the return would be £14,847, more than 100 times greater. In fact, the only investment that has outpaced inflation over the decades is the total return on shares.