text: Abara n isalan n aqtisad ahan farak mathematics id economy d behavioural economics fuk nasan olah nen i tiɣir daɣ behavioural psychology d amartay n ɣansar tan i inhajja tan n neoclassics amosan muduɣ fal taj teɣare daɣ abara tan ajjotnen n aqtisad