Daimler cannot sell more big-margin vehicles such as the E-class, AMG E or the S-Class and SUV's in Europe unless it sells more small models that will allow the company to fall in line with E.

FORBES: Opinions

Managers are also constructive on retail and institutional inflows into the asset class as investors seek out relatively wide-margin, low-duration opportunities.

FORBES: Leveraged loan returns hit 4-month high of 1.06% in January

Even Gannett, a class act in the mediocre-newspaper business, has an operating margin of only 34% in its newspaper division.

FORBES: Cheapskate Journalism