In this video, Roger Martin shares his belief that a company should be judged by the simple criteria of: Are they gaining additional customers and are these customers increasing in satisfaction and loyalty? If a company isn't, it needs to do some introspection. If it is, the stock market, in time, will reward the company.
The Motley Fool's chief investment officer has selected his No. 1 stock for this year. Find out which stock it is in the brand-new free report: "The Motley Fool's Top Stock for 2013." Just click here to access the report and find out the name of this under-the-radar company.