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but it can't happen unless the monetary authorities are totally negligent and incompetent, as happened in the great depression.Or if you do not have monetary policy flexibility, like when you're on the Gold Standard, as happened in the Great Depression (until FDR went off of it).
See Bernanke and James (1990):
> However, Temin (1989) argues that, once these destabiliz- ing policy measures had been taken, little could be done to avert deflation and depression, given the commitment of central banks to maintenance of the gold standard. Once the deflationary process had begun, central banks engaged in competitive deflation and a scramble for gold, hoping by raising cover ratios to protect their currencies against speculative attack. Attempts by any individ- ual central bank to reflate were met by immediate gold outflows, which forced the central bank to raise its discount rate and deflate once again. According to Temin, even the United States, with its large gold reserves, faced this con- straint. Thus Temin disagrees with the suggestion of Friedman and Schwartz (1963) that the Federal Reserve's failure to protect the U.S. money supply was due to misunderstanding of the problem or a lack of leadership; instead, he claims, given the commitment to the gold standard (and, presumably, the ab- sence of effective central bank cooperation), the Fed had little choice but to let the banks fail and the money supply fall.
* https://www.nber.org/system/files/chapters/c11482/c11482.pdf
For a fuller treatment, see Eichengreen:
> This book offers a reassessment of the international monetary problems that led to the global economic crisis of the 1930s. It explores the connections between the gold standard--the framework regulating international monetary affairs until 1931--and the Great Depression that broke out in 1929. Eichengreen shows how economic policies, in conjunction with the imbalances created by World War I, gave rise to the global crisis of the 1930s. He demonstrates that the gold standard fundamentally constrained the economic policies that were pursued and that it was largely responsible for creating the unstable economic environment on which those policies acted. The book also provides a valuable perspective on the economic policies of the post-World War II period and their consequences.
* https://www.goodreads.com/en/book/show/775143
Following the rules of the gold standard is what caused the initial "negligent and incompetent" action. Of course later (1937) on they raised rates too soon (and the government dialled back deficit spending), which caused an economic slowdown.
It was not until the giant stimulus packaged often referred to as "World War Two" that the economy picked up again.