Groupon annual revenueFurniture and TV tip-over deaths
As Groupon's annual revenue has risen and fallen, furniture tip-over deaths have followed with the statistical fidelity of a trend that apparently checks Groupon's earnings before deciding how many bookshelves to topple. The coefficient is 0.841 across thirteen years, during which Groupon went from a tech unicorn to a cautionary tale while furniture continued its quiet campaign against the unsecured bookcase. Both peaked around 2013 and both declined, which is either meaningful or coincidental. It is coincidental.
Groupon's business — local experiences, restaurants, spas — was hit nearly as hard as any in 2020 and revenue collapsed accordingly, while the same locked-down households spending money on new furniture saw tip-over deaths rise. One line is what the pandemic took from discretionary spending; the other is what it added to the house.
Thirteen years of Groupon and furniture tip-overs is a correlation that captures two things peaking at the same time and declining together: one because the business model failed, the other because the TVs got lighter. The deal expires, the bookshelf stabilizes, and the correlation between them is just the 2013 economy doing two things at once.
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Want to learn more about why correlations like “Groupon annual revenue” vs “Furniture and TV tip-over deaths” don't prove causation? Read our guide to statistical thinking.