Sören Karau of Bundesbank in this research paper:
The origins of the Great Depression from 1929-33 are controversial to this day. Among economic historians, a widely-held view is that monetary forces played an important role in causing the depression. On the other hand, the macroeconometric literature has by and large found little evidence of the importance of monetary disturbances as a main cause. However, existing macroeconomic work does not incorporate essential insights from the narrative literature. This raises the question whether the conclusions drawn using formal macroeconometric methods change when taking into account in particularthe workings of the international gold standard more explicitly.
I identify monetary policy shocks in a structural macroeconometric framework and assess their role in causing the initial downturn in prices and production from 1929-31. In deliberate contrast to existing work on the depression, I take an international perspective that builds upon an appreciation of the gold standard system operating at the time.
First, I employ a hand-collected monthly data set that covers a large share of the interwar world economy. Second, derived from a theoretical monetary framework, I model monetary disturbances as shocks to central bank gold demand as measured by the world gold reserve ratio. This is preferable not only on theoretical grounds to, say, interest rate measures of individual countries. It also allows me to employ narrative information to sharpen structural shock identification based on sign restrictions. I do so by imposing a single narrative sign restriction that captures a key shift in US and French monetary policy in 1928.
Shocks to monetary gold demand are key in explaining the initial slide into the depression. Whereas the second phase of the collapse in output in 1931 seems to be linked to factors other than central bank policy, monetary shocks are shown to account for the overwhelming initial fall in production and prices. These findings are robust along a number of dimensions.






