Much of the time when this was an issue, supplies and reinforcements could not reach the Continental Army because of "a blockade", since this was prominent British strategy during the Revolutionary War.
The disruption in Atlantic shipping prior to and during the War of 1812 increased the manufacturing and this was the way it affected the United States economy. Since there was problem in importing products, so to balance it, the internal production was increased and this way the economy sustained that period.
The first american railroads were built in the south
Speaking of democratic tradition, one source could be the
Roman Empire which they practiced human right and election of the
representatives in their republic. They had freed men and women given rights to
vote and participate in election. Though males are the only ones allowed to run
an office or in the military. Women were given the chance to vote and
participate. Democracy was part of how the Romans run their government and
court dealings. We can also mention to their court as where Romans stage for
legal action and such matters.