In this article, we will take a look at some of the best income stocks to invest in.Dividends have always played a meaningful role in market returns. Hartford Funds and Ned Davis Research examined how dividend policy affects long-term performance and volatility, focusing on large US stocks in the S&P 500 from 1973 through 2022.The differences were clear. Dividend-paying companies delivered an average annual return of 9.18%. Stocks that paid no dividends lagged far behind, with annual returns of 3.95%. Compa ...