The factors to which I'm referring are the factors of production as outlined by modern economics. These are labor, land, capital, and entrepreneurship. Specifically I'm talking about the way in which these factors develop over time in an economy. These factors are organic, dynamic, and necessarily progressive.
If you're interested, I highly recommend the Foundation for Economic Education's website. They have many free resources from e-books to lectures series' on the market economy, liberal philosophy, and current events. If you haven't already, I also recommend Hazlitt's Economics in One Lesson or Leonard Reeds's I, Pencil, both of which are available for free on the website.
Check out the book by political scientist Wendy Brown called Walled States, Waning Sovereignty. It's extremely relevant. Kindle version
The tl;dr of it is that the amount of walls going up everywhere is actually a reaction to the rise of neoliberalism and trans-national forces which successfully undermine traditional territorial boundaries. But the details are really interesting, she does an entire deconstruction of Locke's 2nd Treatise.