π¨Backfire effectπ¨Endowment effectπ¨Processing difficulty effectπ¨Pseudocertainty effectπ¨Disposition effectπ¨Zeroβrisk biasπ¨Unit biasπ¨IKEA effectπ¨Loss aversionπ¨Generation effectπ¨Escalation of commitmentπ¨Irrational escalationπ¨Sunk cost fallacy