Impulse buying behaviour in tourism: A new perspective

•Past research on impulse buying in tourism is fragmented and focuses on retail.•Impulse buying can be premeditated and occur along the travel planning trajectory.•Intertemporal decision-making provides a useful framework to study tourist impulse.•Affective anticipation and self-regulation are potential mechanisms.•Varied methods can be used to examine the impulse buying-travel decision nexus.