The surge in savings following the 2008-2009 Global Crisis and the recent pandemic have rekindled the interest of economists and policymakers in the paradox of thrift, formulated by Keynes in the 1930s. Subsequent research on the Great Depression of the 1930s, however, has not addressed the link between precautionary savings and growth. Using data on deposits in savings institutions of 22 countries, this column studies the fate of savings during the Great Depression and shows that Keynes’ intuition was right. Banking crises had an impact on economic growth not only through the direct lending channel, but also indirectly through an increase in precautionary savings. This bears important lessons for today.
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How should governments and central banks respond to the large increase in savings rates? What kind of policy was likely to end the accumulation of precautionary savings during the Great Depression? According to the literature on the sources of economic recovery in the 1930s (Temin and Wigmore 1984, Eichengreen 2002, Eggertsson 2008), leaving the gold standard proved to be the typical and most effective way for authorities to signal a change in policy, stabilise business and consumer expectations, and implement countercyclical policies to foster recovery. As can be seen in Figure 3, the ratio of savings to nominal GDP levelled off (and eventually decreased) once a country had left gold.
Figure 3 Ratio of savings institutions deposits to nominal GDP before and after leaving the gold standard
Source: Degorce and Monnet (2020)
A clear commitment to countercyclical policies was a sine qua non condition for stopping the detrimental accumulation of precautionary savings. But Figure 3 and, more generally, the history of recovery from the Great Depression in the 1930s (Eichengreen 1992, Romer 1992) also reveal that the situation did not come back to normal quickly. As in 1937 in the US for example, the first attempt to relax accommodative policies came at a high cost. The efforts of governments are here to stay if we want to prevent uncertainty about economic outcomes from incentivising a high level of precautionary savings. The history of the 1930s also highlights that banking difficulties would only aggravate the current trends in savings accumulation. Avoiding such difficulties in the future remains a major policy issue. Not only do banking crises have a direct effect on outcomes through the volume of lending, but also because they trigger precautionary savings and thus worsen the paradox of thrift.
Research on Great Depression continues to give lessons for today..