Nobody has to convince me that dividends can create some of the world's most tremendous investment returns. But I love seeing new proof come out.

Enter a new study that was conducted by Ned Davis Research.

The firm found that, since 1972, S&P 500 index members that consistently increased their dividends -- or initiated payouts -- handed shareholders an average yearly total return of 10.4% while non-payers produced a total return of just 8.2%.

Ned Davis Research also demonstrated the power of that 2.2-precentage point difference: By investing $100 in the stocks that raised their dividends in 1972, and investor would have ended up with $3,547 today vs. just $1,745 from the non-payers.

There you have it ... proof positive that dividends make a difference!