While the payment networks of giants Visa (NYSE:V) and MasterCard (NYSE:MA) are enormous and currently cannot be matched, smaller players Discover (NYSE:DFS) and American Express (NYSE:AXP) aren't sitting idly by -- they're taking action.

In this video, Motley Fool financial analysts Matt Koppenheffer and David Hanson discuss how Discover is leveraging its smaller network by reaching out to a huge number of partners, and the initiatives American Express is making to reach out to a large number of smaller businesses, where Visa and MasterCard are currently undercutting American Express on price.

David Hanson owns shares of American Express. Matt Koppenheffer has no position in any stocks mentioned. The Motley Fool recommends American Express, MasterCard, and Visa. The Motley Fool owns shares of Discover Financial Services, MasterCard, and Visa. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.