Their primary source of wealth is tribute. Land and Privilege are basis of wealth. Pilgrims required investors, they had to find a way to pay off debt. They didn't start out as good businessmen. Investors pressure for trade.
Land is offered to anyone willing to take up the challenge of clearing it.
No feudal obligations. The land is yours to sell, rent, or pass along to children. Land becomes a commodity. People buy and sell land in Am in a way unheard of in England. In America a man can rise indentured servant to Gentlemen of wealth.