If you think the fact that a U.S. company's earnings conform to accepted standards means they are to be trusted, then allow me to introduce you to the 20 percent of chief financial officers who disagree.
A survey of nearly 400 chief financial officers and top finance executives found the belief that earnings misrepresentation is widespread.
"CFOs believe that in any given period a remarkable 20 percent of firms intentionally distort earnings, even though they are adhering to generally accepted accounting principles [GAAP]," researchers from Duke, Emory and Columbia universities found.
"The economic magnitude of the misrepresentation is large, averaging about 10 percent of reported earnings."
Of the firms that do misrepresent earnings, 2 out of 3 overstate, with the remainder understating. The survey polled 375 CFOs and others in equivalent positions, of whom a little less than half were at public companies.
The CFOs themselves didn't give much credit to audit committees as a safeguard, giving them a low ranking in a listing of factors that influence earnings quality.
If audit committees don't strike fear in CFOs, neither do regulators. Even lower on the list, second last, was the Securities and Exchange Commission.
Interestingly, CFOs were more complimentary about debt investors and analysts, who usually pay closer attention to cash flows and less to flashy "growth" stories.