The first colonial legislature was the Virginia House of Burgesses, established in 1619. The colonies along the eastern coast of North America were formed under different types of charter, but most developed representative democratic governments to rule their territories.
One asnwer is once you lower the price of your product you are sellling , your product's quantity demanded will rise until equilibrium is reached
It hurt the south for a while, slave labor was good for the south's economy but bad for competition up north because nobody could find a job if all the slaves worked for free. The removal of slavery cemented this competition-based method into America.
