The economic relationship was called Mercantilism. In this system raw goods are sold by the colonies to the "mother" country. The "mother" country would then process and manufacture these goods into a product and sell them back to the colonies at a higher rate. This way, the mainland would make a surplus while the colonies would lose money.
It was a super power in Europe and the Balkan, But did not have colonies in the new world.
The people in Europe decided to move to the colonies during the 1600s and 1700s because they wanted religious freedom.
Shipbuilding, fishing and small manufacturing services were the main types of economic endeavors that took place during the Middle Colonies. Agriculture was also important to the economics of the middle Colonies.
Great Britain tried to over power the colonies and treaty them badly during the coloial era
they wanted a better life for family and start a new life
Realism was an ideological concept. It came about as a result of the various social and economic upheavals that happened in Europe during the nineteenth century. Therefore it could be argued that it did reflect the situation then.