Coût irrécupérable 💡

The sunk-cost fallacy keeps people for too long in poor jobs, unhappy marriages, and unpromising research projects.

Sunk costs—anchoring decisions to past efforts that can’t be refunded—are a devil in a world where people change over time.

Sunk-cost bias is the tendency to continue to invest time, money, or energy into something we know is a losing proposition simply because we have already incurred, or sunk, a cost that cannot be recouped.

After making a payment, the customers want to “earn it back” and visit the studio on a regular basis. The frequency of visits starts to decline, though, the further the most recent payment recedes into the past. By encouraging monthly payment s, the studio restores the customers’ incentive to get their money’s worth back. With monthly payments, the

the sunk cost effect makes us all, in ways big and small, build a track from nowhere to nowhere, refusing to quit because we don’t want to lose what we’ve already spent.