What is the Diderot effect?
In his 1769 essay *Regrets on Parting with My Old Dressing Gown*, French philosopher Denis Diderot described how a luxurious new gown made his study look shabby, so he replaced his chair, desk and décor one by one, and ended up missing his comfortable old gown. The Diderot effect names this chain of purchases triggered by one new item.
📌 At a glance
- Origin
- Diderot’s essay (1769)
- Concept
- Anthropologist Grant McCracken (1988)
- Key idea
- New items demand matching items
- Related
- Impulse buying, lifestyle spending
McCracken’s “Diderot unities”
In *Culture and Consumption* (1988), Grant McCracken argued that people keep sets of goods that are culturally consistent (Diderot unities); an item that does not fit pushes them to replace others.
Limiting it
- Budget for the extras a purchase may lead to.
- Use a one-in, one-out rule.
- Wait before buying add-ons.
Frequently asked questions
- What is the Diderot effect?
- The tendency for one new possession to prompt a series of related purchases.
- Where does the name come from?
- From Denis Diderot’s 1769 essay about replacing his furnishings after receiving a new dressing gown.
References
- Diderot, D. (1769). Regrets sur ma vieille robe de chambre [Regrets on parting with my old dressing gown].
- McCracken, G. (1988). Culture and consumption: New approaches to the symbolic character of consumer goods and activities. Indiana University Press.