Yes, though that could apply to any pre-modern society, whereas the Indo-Europeans were especially caught up on contracts and hospitality, even compared to simi

Yes, though that could apply to any pre-modern society, whereas the Indo-Europeans were especially caught up on contracts and hospitality, even compared to similar societies. It's all quite fascinating, and in the context of them going on take over a vast swathe of Eurasia, one wonders whether this kind of ritualised deal-making was a significant competitive advantage that their neighbours lacked at the time.