Answer: Feudalism as an economic model of medieval Europe.
Step-by-step explanation:
The European economic system was based on feudalism. All the land was in the monarch's hands, and he assigned that land to the nobles. The land was worked by peasants who fed the complete system and had the right to keep part of the income for themselves. In return, the nobles had to provide the monarch with a part of the soldiers (depending on the plot's size) in case of war. Technological progress was recorded only with the Industrial Revolution's appearance, which strongly influenced the development of the European continent.