What A World Without Passports Would Require And Produce

The passport is not ancient. The word appears in medieval European records as safe-conduct letters granted by monarchs to travelers — a personal favor, not a universal system. For most of recorded history, most people moved without formal documentation. What mattered was whether you had coin and whether the local lord or magistrate would tolerate you.

The modern passport system is a child of World War I. In 1914, most European borders could be crossed with a ticket. Henry James could live in England as an American citizen without anything like the paperwork we now consider standard. The Russian Revolution, the breakup of the Austro-Hungarian and Ottoman Empires, and the displacement of millions of refugees created a new pressure. The 1920 League of Nations Paris Conference on Passports established the standardized booklet. It was meant to be temporary. Delegates explicitly hoped passports would be phased out once Europe stabilized. They never were.

John Torpey's The Invention of the Passport (2000) traces how the state's monopoly on the legitimate means of movement became a defining feature of modernity. Before the passport, the state monopolized violence. After, it monopolized mobility. The passport is not a neutral administrative object. It is a tool of statecraft that has become so naturalized that questioning it feels eccentric.

Economic gradient. Branko Milanovic's work on global inequality (Global Inequality, 2016; The Haves and the Have-Nots, 2011) is the clearest empirical picture we have. The single strongest predictor of your lifetime income is not your education, not your work ethic, not your intelligence — it is the country you were born in. Milanovic calls this the "citizenship premium." If you're born in Switzerland, you're born into roughly 100x the income of someone born in the Central African Republic, doing similar work. This is the fuel for migration pressure. Close the gap and the pressure eases. Development economics has spent decades trying to close the gap. Progress is real — extreme poverty has dropped dramatically since 1990 — but the gradient remains steep enough that passports function primarily as wage differentials made physical.

Shared rule of law. The EU's Schengen Area works because it rides on top of the European Arrest Warrant (2002), shared judicial frameworks, and convergence around human rights norms. When any of these weaken — Poland's judicial reforms, Hungary's democratic backsliding — the free movement architecture trembles. The deeper condition is not just "shared law" but shared legitimacy of that law. People must believe the system is fair enough to accept its jurisdiction over them. That's a cultural project, not a legal one.

Pandemic monitoring. The WHO's International Health Regulations (2005, revised 2024) are the current global framework. COVID-19 exposed their limits: delayed reporting, politicized information, vaccine nationalism. A serious post-passport world would require something closer to real-time pathogen genomic surveillance, trusted cross-border health credentialing, and mutual recognition of quarantine enforcement. Taiwan's COVID response, which leaned heavily on digital contact tracing and transparent communication, is probably the closest existing model. Replicating it at planetary scale is the project of a generation.

Criminal justice cooperation. Interpol has 196 member countries but limited enforcement power. Its Red Notices are requests, not warrants. It is frequently abused by authoritarian states to pursue dissidents — a real problem that a more robust post-passport system would have to solve before it could be trusted. The International Criminal Court is another partial instrument, with the U.S., Russia, China, and India all outside its jurisdiction. Any serious free-movement architecture would need a level of global criminal cooperation that currently exists only in fragments.

Michael Clemens' Economics and Emigration: Trillion-Dollar Bills on the Sidewalk? (2011, Journal of Economic Perspectives) is the landmark paper. His estimate: removing global barriers to migration could increase world GDP by 50–150%. That's not a typo. Double global output. The intuition is simple: a worker doing the same job in a high-productivity economy generates vastly more value than in a low-productivity one. Moving workers to where productivity is higher is one of the largest untapped gains in the world economy, comparable to the gains from eliminating global trade tariffs — and probably larger.

Remittances already tell part of this story. In 2023, migrants sent roughly $860 billion home to low- and middle-income countries — more than three times the total foreign aid budget. The World Bank tracks this in its Migration and Development Brief. Remittances are the most effective anti-poverty intervention humans have ever devised, and they work almost invisibly.

Don't pretend this is painless. Open movement at scale would hit receiving cities hard before infrastructure catches up. Housing crises would intensify before they resolved. Social services would strain. Cultural friction would be real. People who invested their identity in the cohesion of a particular place would experience loss.

The honest answer is: the pain is real and the current system produces more pain, distributed differently. Millions die or live in quiet desperation because they can't access opportunity. We don't see their faces because the border makes them invisible to us. A more open system would make the trade-offs visible, and that visibility is itself a cost. It's easier to ignore suffering behind a wall than suffering in your own neighborhood.

Here's where it gets philosophical. If the nation-state is not the container of identity, what is? The post-passport answer is probably: multiple overlapping affiliations. Your city, your language, your profession, your faith, your diaspora network, your chosen community. Some of these are already stronger than national identity for many people. Ask a software engineer where they're "from" and you may get a longer answer about GitHub, Silicon Valley, and a home village than about their passport.

Benedict Anderson's Imagined Communities (1983) is the indispensable text here. National identity is, in his famous phrase, an imagined community — not fake, but constructed through print media, shared rituals, schooling, military service. The construction is real. So is its impermanence. Nations have been built and dissolved within living memory. Yugoslavia. The Soviet Union. Czechoslovakia. The UK almost lost Scotland in 2014 and may yet. The nation-state is not a permanent feature of human organization. It's a contingent one.

A few frames I find useful:

The Onion of Jurisdiction. Imagine concentric layers: household, neighborhood, city, region, nation, continent, planet. Different functions belong at different layers. Policing probably belongs locally. Currency increasingly belongs continentally. Pandemic response belongs globally. A world without passports is not a world without governance — it's a world where governance is layered rather than stacked at the nation-state.

The Mobility Triangle. Any society navigating mobility faces three corners: economic openness, cultural cohesion, and political stability. You can often maximize two at the expense of the third. Historically, Japan chose cohesion and stability at the cost of openness. Post-1965 America chose openness and stability at the cost of cohesion. The EU is trying for all three and finding the corners don't bend easily.

The Gradient Problem. Wherever you build a wall, you create an arbitrage opportunity on both sides. Smugglers exploit the gradient. Workers suffer in the gradient. Employers profit from the gradient. The wall does not make the gradient go away. It redirects who benefits from it, usually toward the least scrupulous actors.

The EU / Schengen. 450 million people, 27 countries, common market, common currency in 20 countries, no internal border checks. Uneven. Hungarian attempts to undermine it. Post-Brexit strain. Migration crisis of 2015. But it survived all of that, and most Europeans under 35 have never lived a life with internal EU borders. The experiment has normalized itself.

ECOWAS. The Economic Community of West African States allows citizens of 15 member countries to live and work across borders. In practice, enforcement varies. But the free movement protocol has existed since 1979 and has shaped trade and labor patterns across West Africa.

Trans-Tasman Travel Arrangement. Australia and New Zealand citizens can live and work in each other's countries without visas. It's worked since 1973 and operates almost invisibly. Two countries, culturally similar, economically similar, politically aligned. The easy case.

The Nordic Passport Union (1952). Preceded the EU by decades. Five countries, free movement, still functional. The quiet success that no one talks about.

GCC. The Gulf Cooperation Council has partial free movement for citizens but relies heavily on an exploitative migrant labor system underneath. A cautionary tale: free movement for some, bound labor for many.

Read the news with this frame and the noise clarifies. When politicians argue about caravans, boats, and caps, they are arguing about three deeper things:

1. How steep is the economic gradient, and who benefits from keeping it steep? Employers often want cheap labor and silence; workers often want protected wages and voice. Both are legitimate.

2. What is the nation? Is it a people, a place, a creed, a passport? The answer has shifted multiple times in American history alone. Each shift was contested.

3. Who decides? Is immigration a policy lever of the state, or a human right that transcends the state? International law uneasily recognizes both through refugee conventions.

The fights are not really about policy minutiae. They are about which of these questions you prioritize.

1. Trace your own lineage. Where did your family live 150 years ago? How many borders did they cross to get where they are? What documents did they need? The odds are high that your ancestors moved more freely than your descendants will — unless we change course.

2. Build the map. For any country you know well, list the top three sending countries of immigrants and the top three receiving countries of emigrants. Ask: what does the gradient look like in both directions?

3. Write the obituary of the passport. One page. Imagine it's 2125 and passports are a museum artifact. What killed them? What replaced them? What do historians say the passport era got wrong?

- John Torpey, The Invention of the Passport: Surveillance, Citizenship and the State (2000) - Branko Milanovic, Global Inequality: A New Approach for the Age of Globalization (2016) - Michael Clemens, "Economics and Emigration: Trillion-Dollar Bills on the Sidewalk?" Journal of Economic Perspectives (2011) - Benedict Anderson, Imagined Communities (1983) - Paul Collier, Exodus: How Migration is Changing Our World (2013) — a skeptical counterweight worth reading - World Bank, Migration and Development Brief (annual series) - Hein de Haas, How Migration Really Works (2023)

The passport is a piece of paper. The nation is an idea. Both are younger than we pretend. Both will outlive this decade. Neither will outlive the century in their current form.