Gross domestic product (GDP) is the sum of all incomes distributed in a year, including disposable personal income (DPI). So, GDP and DPI are positively correlated. That is, they generally move in the same direction and follow each other closely.
Our FRED graph above shows this correlation, with one striking deviation at the point of the COVID-19 pandemic. What’s behind this deviation? A third measure, personal current transfer receipts, can help explain.
The US government increased transfers to households in such large proportions during the pandemic that DPI growth actually increased even though GDP growth decreased.
GDP and DPI
Prior to 2020, GDP and DPI show a clear positive correlation. During recessions (shaded areas in the graph), the growth rates of GDP and DPI decreased. The correlation also holds outside recessions: During the recoveries after the 1981-82 and 2007-09 recessions, the growth rates of both GDP and DPI increased.
From 2020 to 2023, however, the two series behave quite differently: GDP’s growth rate decreased while DPI’s growth rate increased.
DPI and Transfers
Although GDP and DPI are closely related, there’s a difference between them: DPI includes government transfers to individuals, which is captured by the thin red line in the graph. And it’s these transfers that explain the change in the behavior of GDP and DPI in 2020.
Our second FRED graph, above, zooms in on the period of the COVID-19 pandemic. The US government sent transfer payments to households to alleviate the severity of the crisis. In the second quarter of 2020, transfers increased substantially and so did personal disposable income, despite the fact that GDP growth had gone negative.
The growth rates of transfers and PDI then generally declined and went negative in the first quarter of 2022, despite the fact that GDP growth had been positive. By 2024, the rates were aligned once again.
Why was 2020-23 so different?
The US government has increased transfers to households before to alleviate the severity of crises. For example, the first graph shows an increase in transfers during the 2007-09 recession. So why did DPI growth actually increase during the COVID-related recession, but in no other recession?
The increase in transfers in 2008 was only 25%, compared with 75% in 2020 and 89% in 2021. Those are proportions not seen before.
How these graphs were created: Search FRED for and select “GDP.” Click on “Edit Graph,” open the “Add Line” tab, and search for and select “DPI.” Add another line search for “PCTR.” Open the “Edit Lines” tab and choose quarterly frequency and “Percent Change from Year Ago” units for each line. From the “Format” tab, choose the right axis for the third line (PCTR). For the second graph, start the sample period in 2020 Q1.
Suggested by Guillaume Vandenbroucke.