Impact on GDP will depend on the savings behaviour of US households
Despite the relative stability of household income in 2020, it is not clear whether this replacement income will be fully spent, or even whether it will be spent in the same proportion as it was before the crisis. We assume that 40% of the additional income received by households would be consumed and the rest would be saved. All in all, the household savings rate is expected to average close to 20% in 2020, compared with an average of 8% in 2019.
This can be attributed to the high level of forced savings resulting from lockdown and changes in consumption habits; the savings rate reached a peak of 32% in April, after 8% in February and 13% in March. However, the households targeted by the stimulus payments mainly belong to the low-wage category, which traditionally have a higher propensity to consume and which, moreover, have benefited from a net increase in income (Muellbauer, 2020; Ganong et al., 2020). Furthermore, according to Karger and Rajan (2020), 48% of the cheques paid to households under the CARES Act were immediately consumed.
Overall, our results show that the stimulus should only partially absorb the shock to consumption and investment, thereby offsetting the loss of activity by 4.5 percentage points of GDP in 2020. Nevertheless, the US economy is expected to contract by between 6.5 and 8% in 2020 (according to our estimates as well as those of national and international institutions). The longer-term impact of these stimulus measures will depend on the consumption and savings behaviour of US households.
We analyse the sensitivity of our results to assumptions about the propensity of households to consume. With a lower marginal propensity to consume of 25%, similar to that observed during the recovery plans of 2001 and 2008 (Sham et al., 2010), the final gain in GDP would also be lower, i.e. around 3.4 percentage points.
The need for further stimulus measures is gradually becoming apparent
The measures were primarily taken by the US authorities in response to an emergency situation. Indeed, many of them are scheduled to end in July or at the end of the year. They are intended to temporarily make up for the lack of social safety nets and thus offset short-term income losses. However, they seem insufficient to allow the US economy to recover in the medium term, especially if the shock from the crisis proves to be relatively persistent. To this end, proposals have already been submitted to the US Congress on a new stimulus package to be adopted before the presidential election next November.