It serves the purpose of promoting the balance of trade. Rules were passed to promote a prosperous and productive agricultural sector, create variety of domestically manufactured goods, and further the exploitation of the colonial resources. Colonies were a ready export market, coerced into purchasing manufactured goods from home country which companies have monopoly power over the right to trade. The stronger the tribe, the more they engage in trade. Bartering begins, exchanging goods for goods or services.
Lands hold in fee.
Learned they could enslave people. Political groups evolve. Rent and trade begins. The Church prescribes rules for economic conduct that were compatible with its religious doctrines. Farmers were frequently deprived of their harvest as a result of incursions by foreign tribes, they decided to band together and provide their own protection.