Article on vox.eu makes me go Oh, Oh!

Eichengreen and O'Rourke on 'A Tale of Two Depressions'

[T]he world is currently undergoing an economic shock every bit as big as the Great Depression shock of 1929-30. Looking just at the US leads one to overlook how alarming the current situation is even in comparison with 1929-30.

World Industrial Output, Now vs Then

World Industrial Output, Now vs Then