So, two of the most prominent and respected professors of finance in the world got it wrong! There are several interesting aspects to the Reinhart and Rogoff spreadsheet error saga and many commentators have jumped in to criticise their work now that we know they omitted out five countries. Perhaps the one thing that has not been said is that they had the good grace, open mindedness and humility to send their data to a graduate student that they had never met and wasn’t even a student at either of their universities. Professors do get it wrong, as do all human beings, but good ones are open to analysis and criticisms from others.