Is the COVID-19 Pandemic a Supply or a Demand Shock? | St. Louis Fed
Is the COVID-19 Pandemic a Supply or a Demand Shock? | St. Louis Fed
For this reason, most economists would agree that the pandemic combines aspects of both supply and demand shocks. A supply shock is anything that reduces the economy's capacity to produce goods and services, at given prices. Lockdown measures preventing workers from doing their jobs can be seen as a supply shock. A demand shock, on the other hand, reduces consumers' ability or willingness to purchase goods and services, at given prices. People avoiding restaurants for fear of contagion is an example of a demand shock. Additionally, as service sector workers lose their jobs and income, they stop purchasing all kinds of goods, such as cars and appliances, which can also be thought of as a sectoral demand shock.
Conventional monetary and fiscal policy can offset some types of aggregate demand shocks, but other policies may be more appropriate to counter supply shocks. Understanding whether supply or demand causes a particular shock is therefore very important for policy design. The government doesn't want to stimulate activity in certain service sectors because of concerns about further spreading COVID-19. The government could, however, stimulate sectors that are not part of the lockdown but are subject to aggregate shocks. This means that it is important to understand whether supply or demand shocks or both affect each sector.