How do you stop corporate fraud?

Ethical choices are rarely black or white and individuals are not very good at assessing the purity of their own motivations, writes the Economist's Bartleby. In a new book about behavioural biases, “You’re About To Make A Terrible Mistake”, Olivier Sibony of HEC business school in Paris writes that “as soon as there is any ambiguity about a judgment…we reason in a way that is selective enough to serve our interests and yet plausible enough to convince others (and ourselves) that we are not intentionally distorting the facts.”