It has only been a week since the stunning revelation that the Volkswagen group equipped millions of diesel-powered cars with software designed to fool anybody testing their emissions, and just days since the company’s chief executive, Martin Winterkorn, resigned.

And yet there are reasons to believe that the fallout from this scandal will be as big as Enron, or even bigger. Most corporate scandals stem from negligence or the failure to come clean about corporate wrongdoing. Far fewer involve deliberate fraud and criminal intent.

Enron’s accounting manipulation is often held up as a prime example of the latter and cases featuring the US energy company’s massive financial fraud are therefore taught in business schools around the world.