From the article: "As a group, employees who are asked to work long hours are the above-average workers;" Nonsense. Employees who work longer hours are, (IMH

From the article: "As a group, employees who are asked to work long hours are the above-average workers;" Nonsense. Employees who work longer hours are, (IMHO) the below-average workers who can't get the work done in the time allotted. Whether they do it of their own accord, or are asked to stay behind and finish.