He grounded this idea in the Freudian theory of id, ego and superego; it became important in behavioral economics in the form of Richard Thaler's "multiple selves" theory of saving behavior.
Ta tugines Sigmund Freud Id'i, Ego ja Superego teooriale; käitumisökonoomikas sai see oluliseks Richard Thaleri säästmiskäitumise mitme mina (multiple selves) teoorias.