As Mark Twain famously said, “It ain’t what you don’t know that gets you into trouble. It’s what you know for sure that just ain’t so.”

Speaking of which, Mark Twain probably didn’t actually say this. But it’s still good to remember that we can be wrong—even when we’re sure we’re right.

Below I keep track of important mistakes I’ve made during podcast episodes. I focus on factual errors. If you hear other items that should be listed here please contact me.

Last updated: January 2021


During the introduction to my podcast with Anne Goldgar, I mentioned that the satirical pamphlets spread in the wake of tulipmania were issued by Dutch governments. They were, in fact, the work of individuals, some associated with chambers of rhetoric (drama societies).


During my second podcast with John Hempton I mentioned that there had been three Australian asset price bubbles. The research I was referencing was this conference paper by John Simon, which examined three examples of Australian asset price bubbles but did not state they were the only examples.