The 2019 Hurwicz Lecture

(…) if implementation is impossible or prohibitively costly, even the most attractive mechanism remains a utopia.
Leonid Hurwicz, Nobel Prize Lecture, 2007

The 2019 Hurwicz keynote address was given by prof. Jörn-Steffen Pischke (London School of Economics and Centre for Economic Performance) The title of the lecture is: Of Mice and Merchants: Trade and Growth in the Iron Age.