The pros and cons of great discoveries for the old world?

The era of geographical discoveries, which fell at the height of the Middle Ages, played an ambiguous role in the history of the countries of the old world. On the one hand, the European states have received what they have long needed – sales markets for their own products. Also, with the discovery of new lands, they received colonies and raw materials that were used for the development of industry. But the negative sides were: increased competition and deterioration of relations between states. Conflicts were brewing between the colonies.