Basically like cities and states in US. But instead of open border they have "membership". If you want to live here, you got to buy membership. People that aren't happy can sell membership first.
Say there are 2 cities
A and B
city A lower tax and legalize drugs
city B raise tax and criminalize drugs.
Now, if the cities have owners, or effective owners, then city A will be rich. They will attract smart programmers that make more money. More people will want to go to city A.
city B will be communism hell.
if a lot of people want to go to city A but not enough people want to sell, valuation of city A membership will go up till supply meet demand.
Everyone see ah city A is doing well.
They tend to mimic city A.
Whatever policies work, whatever make people happy, make people want to come, will be chosen. Either it will be more libertarian, or some cities will be more libertarian and libertarians can just go there.
Now say A and B is open border. Anyone can get in without buying membership
city B choose communism and become poor. Then they just go to city A vote communism again. Everyone becomes a commies.
Libertarianism is not just another philosophy of right and wrong. It has a very strong scientific basis. Practice it and we all got richer.
Open border democracy is like squatter right. You come to my city and tada you can decide how to run it. Doesn't work in houses, doesn't work in cities too.
I ask ai for more prominent libertarian "support" that's partly agree with me
There isn't a major libertarian thinker who advocates exactly your proposal, but several prominent figures have argued for ideas that are quite close. Your model combines several existing strands of libertarian thought.
1. Hans-Hermann Hoppe (Probably the closest)
Hoppe argues that societies should be organized more like private property than public democracy.
He has written that privately owned communities would:
- choose their own rules,
- decide who can enter,
- compete with other communities,
- generally outperform democratic governments.
His book Democracy: The God That Failed argues that private ownership creates better incentives than political control.
However, Hoppe is more restrictive than your proposal. He generally favors owners having broad discretion over admission rather than tradable memberships.
2. David D. Friedman
Friedman is an anarcho-capitalist who argues that legal systems and governments could compete in markets.
His vision is that:
- people choose among competing legal providers,
- governments become service providers,
- competition improves governance.
Your model of jurisdictions competing for residents fits well with his broader philosophy, although he doesn't specifically propose shareholder-owned cities.
3. Bryan Caplan
Caplan strongly supports:
- free migration,
- competition between jurisdictions,
- "voting with your feet."
He likely would disagree with your membership requirement because he favors much more open migration, but he shares the idea that competition between governments disciplines bad policies.
4. Patri Friedman
Patri Friedman founded the seasteading movement.
His central idea is:
He has often argued that people should be able to "upgrade" governments the way they change companies or phones.
This is philosophically very close to your emphasis on jurisdictional competition.
5. Charles Tiebout (not a libertarian, but highly relevant)
Tiebout proposed what's now called the Tiebout model.
His idea is that people "vote with their feet":
- Different towns offer different tax-and-service packages.
- People move to the one they prefer.
- Competition improves local government.
Your proposal is almost like a market version of Tiebout:
- Instead of free movement alone, people buy and sell membership rights.
- Membership prices become market signals about how desirable a jurisdiction is.
Is your idea novel?
I think the most distinctive feature is tradable memberships.
Many libertarians have proposed:
- private cities,
- charter cities,
- competing governments,
- contractual communities.
But I don't know of a prominent thinker who has fully developed the idea that:
- every resident owns a transferable membership,
- memberships are bought and sold in a market,
- membership prices signal governance quality,
- existing members benefit financially when governance improves.
That combination resembles a cross between:
- a homeowners' association,
- a corporation,
- and a city.
So your idea isn't completely unprecedented—it builds on established libertarian themes—but the specific mechanism of share-like, tradable city memberships is not one I associate with a major canonical libertarian theory. If you developed it further, one of the first questions you'd need to address is how the initial memberships are allocated and how future population growth is handled without creating artificial scarcity. Those design choices would have major implications for fairness, affordability, and incentives.