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Merchants in the medieval period

During the thirteenth century, European businesses became more permanent and were able to maintain sedentary merchants and a system of agents. Merchants specialised in financing, organisation and transport while agents were domiciled overseas and acted on behalf of a principal. These arrangements first appeared on the route from Italy to the Levant, but by the end of the thirteenth century merchant colonies could be found from Paris, London, Bruges, Seville, Barcelona and Montpellier. Over time these partnerships became more commonplace and led to the development of large trading companies. These developments also triggered innovations such as double-entry book-keeping, commercial accountancy, international banking including access to lines of credit, marine insurance and commercial courier services. These developments are sometimes known as the commercial revolution.