In Friday's weekly edition of Motley Fool Money radio show, host Chris Hill was joined by analysts Joe Magyer, Ron Gross, and James Early in a discussion on the recent earnings reports from Chipotle (CMG -1.34%)and McDonald's . Shares fell for both chains after Q3 results failed to live up to analyst expectations. In the following video, the guys look at the issue of slowing same-store sales, which is the biggest challenge both companies face today.

On the other hand, Yum! Brands stands out in the quick-service restaurants industry thanks to its strong track record and promising future. It's performance like this that led The Motley Fool to feature Yum! Brands in our special free report "3 American Companies Set to Dominate the World." Profiting from our increasingly global economy can be as easy as investing in your own backyard, and in this report we show you how. Click here now to uncover our picks for the other two companies set to soar.