The Covid-19 pandemic and subsequent lockdowns sent the US (and world) economies into an immediate recession. The US experienced record high levels of unemployment and a massive reduction in GDP. To counteract this recession, the federal government enacted a series of expansionary fiscal policy recommendations that increased the aggregate demand curve to account for the previous reduction.
In this scene, Homer and Bart are loading construction materials into their car at Builder’s Barn (a Home Depot-type store). Bart isn’t sure his dad is capable of handling the word himself when a group of immigrant day laborers offer their services. The day laborers have come from nearby Barleyville due to a recent “Barley Bust.” Homer accepts their offer and welcomes them to his home. He now feels superior because he’s able to hire workers to do jobs “we don’t want to do,” but then a hoard of laborers rushes the town of Springfield.
For a deeper look at economics and The Simpsons, check out Josh Hall’s book Homer Economicus.