trade

Medieval walrus ivory may reveal trade between Norse and Indigenous Americans hundreds of years before Columbus, study finds

Balancing concessions, balancing trade - EurekAlert

Advances in techniques used to identify sharks and rays have not prevented trade and increase in extinction risk - EurekAlert

Semantic scope of Indus inscriptions comprising taxation, trade and craft licensing, commodity control and access control: archaeological and script-internal evidence | Humanities and Social Sciences Communications