The Economist has published an interesting chart comparing the post-MBA salary, fees and opportunity cost (forgone salary) of some top MBAs at

The RoI analysts is interesting, because is spotlights some inexpensive courses producing substantial salary boosts (often not to very high salaries admittedly). The top schools are HEC, Aston, HKU, Bocconi, IU Japan and Schulich.

Salary data are even more interesting: the top schools are all ones focussed on mid-career managers: Queensland, Macquarie, St Gallen and IMD. The top ten include the leading US schools: Stanford, Harvard, Wharton, MIT, Kellogg.

But there are two big surprises: HEC and ESADE, both of which outperform Berkley, London, Tuck, Booth and Insead. I find that quite odd. Does anyone have any ideas? Is this a distortion caused by the PPP calculation?