Political mobility does not make welfare impossible. It changes the scale at which welfare must be designed.
Imagine two neighboring political communities.
One provides generous healthcare, unemployment protection, disability support, pensions, and assistance for people who cannot support themselves.
The other provides much less.
Now make movement between them easier.
A familiar fear appears immediately.
What if people who need benefits move into the more generous community?
What if high-income taxpayers move out?
Would political mobility gradually destroy the welfare state?
The question is serious.
But it is often asked too simply.
The harder question is:
Which social obligations should follow the person, which should remain with the community where they were earned, and which should become the responsibility of the community where the person now lives?
That is not a choice between welfare and freedom of movement.
It is a problem of institutional design.
Not Every Social Right Has the Same Logic
“Welfare” is too broad a category.
A pension earned through twenty years of contributions is different from emergency shelter.
Unemployment insurance is different from a residence-based minimum income.
Healthcare is different from a family allowance.
Disability support is different from an old-age pension.
Each may depend differently on past contributions, current residence, immediate need, employment, family status, or long-term membership.
So the question “Should welfare be portable?” has no single answer.
Some rights are closely connected to what a person has already earned.
Others arise because a person currently lives within a community and needs protection there.
Still others combine both principles.
The architecture has to be differentiated.
What Has Already Been Earned Should Not Simply Disappear
Consider a worker who contributes to a pension system for twenty years and then moves elsewhere.
If moving causes those twenty years to vanish, the formal freedom to move becomes expensive.
This is why portability matters.
But portability does not mean that the destination must assume every liability created elsewhere.
The system in which the pension was earned may remain responsible for it.
The destination may provide current services.
The two systems may coordinate.
Protecting a right across movement does not require transferring every cost to the destination.
Portability can sometimes reduce fiscal risk. If historical pension liabilities remain with the system in which they accrued, a destination does not automatically inherit decades of past obligations.
Portability Is Not Equal Treatment
Suppose someone worked for twenty years in Community A and then moves permanently to Community B.
A pension earned in A may remain the responsibility of A.
But access to schools, healthcare, or residence-based assistance in B raises another question.
That is equal treatment.
Portability is not equal treatment.
Portability asks what happens to rights built before the move.
Equal treatment asks how the person should be treated where they now live.
The destination does not have to inherit every historical liability in order to treat a resident fairly today.
Europe Shows That Coordination Is Possible
The European Union offers one partial model.
It does not have a single European welfare state. National social-security systems remain different.
Yet EU rules coordinate them.
Periods of insurance, work, or residence in different countries can sometimes be combined when eligibility is calculated. Many cash benefits can be paid across borders, although important exceptions remain.
The details were discussed earlier in “How Can Rights Survive Movement?”
The important point here is simple: coordination does not require harmonization.
Different welfare systems can remain different while rules determine which institution is responsible when people move.
Residence Can Deepen Without Everything Arriving on Day One
A more difficult question concerns benefits connected to present residence.
Suppose someone moves into a political community today.
Must every residence-based social benefit become available immediately and in full?
EU free-movement law shows one way of treating this problem in stages.
Under Directive 2004/38/EC, a host Member State is not generally required to provide social assistance during the first three months of residence.
At the same time, Union citizens who reside lawfully under the Directive are generally entitled to equal treatment, subject to specific exceptions.
After five years of continuous legal residence, Union citizens acquire a right of permanent residence.
This is not a simple rule of no rights at first and full rights after five years.
The actual legal structure is more complicated.
But it demonstrates an important principle: mobility and equal treatment can develop through differentiated rules rather than an all-or-nothing switch.
The Court of Justice addressed one limit in the 2014 Dano case.
Elisabeta Dano was an economically inactive Romanian citizen living in Germany who was not seeking employment and did not satisfy the Directive’s conditions for a right of residence beyond three months.
The Court held that Germany could refuse her certain non-contributory social benefits.
The lesson is not that mobile people may generally be excluded from welfare.
It is that European free-movement law itself distinguishes among legal residence, economic status, benefit type, and stage of residence.
Waiting Periods Need Justification
A staged system can be legitimate.
But the existence of an EU precedent does not make every waiting period acceptable.
A waiting period is not automatically unjust.
Nor is it automatically legitimate.
If access to a benefit is delayed, we should ask what problem the delay is solving, whether it is necessary, whether its duration is proportionate, whether it leaves the person without a basic floor of protection, and whether a less restrictive rule could protect the same fiscal interest.
Different benefits may justify different answers.
A contributory pension, emergency healthcare, unemployment insurance, and long-term social assistance do not have to share one eligibility rule.
A Minimum Floor Is Not an Unlimited Welfare Obligation
Social rights do not require every political community to provide unlimited benefits under every circumstance.
A minimum floor is not a complete welfare package.
Communities can still differ in tax levels, benefit levels, insurance systems, pension structures, contribution rules, and methods of delivery.
Political diversity does not require abandoning social protection.
And social protection does not require institutional uniformity.
People should not have to gamble away basic protection simply because they exercise political mobility.
Does Welfare Attract Migration?
The “welfare magnet” argument is often stated as though it had a single empirical answer.
It does not.
Corrado Giulietti, Martin Guzi, Martin Kahanec, and Klaus F. Zimmermann studied immigration and unemployment-benefit spending across 19 European countries from 1993 to 2008.
Simple correlations suggested some relationship for non-EU migration.
But once the authors addressed endogeneity, the estimated causal effect became much smaller or essentially zero. For migration from within the EU, they found no relationship with unemployment-benefit generosity.
A different study reached a different result.
Ole Agersnap, Amalie Jensen, and Henrik Kleven examined a Danish reform introduced in 2002 that reduced benefits for non-EU immigrants by about 50 percent.
They estimated that the reform reduced net immigration by about 5,000 people per year. When the policy was later repealed, the effect largely reversed.
These findings do not cancel each other out.
They examine different populations, benefits, and mobility regimes.
One studies broad cross-country variation in unemployment benefits.
The other exploits a sharp immigrant-specific reform affecting non-EU migrants in Denmark.
Which benefit, for which population, under which mobility regime, and by how much?
That is the more useful question for institutional design.
Taxpayer Exit Raises the Reverse Problem
Mobility can also put pressure on welfare from the other direction.
Highly mobile taxpayers may leave communities that rely heavily on them to finance redistribution.
Earlier essays on majority democracy and fiscal risk examined that problem in more detail.
The conclusion here is narrower.
Taxpayer mobility does not prove redistribution is impossible.
It asks us to reconsider the scale at which different social obligations are financed.
The Scale of Solidarity
Not every welfare function needs to operate at the same level.
Schools and many care services are delivered where people live.
Other risks may benefit from wider financing pools.
Pensions spread obligations across long periods.
Unemployment insurance pools labor-market risks.
Expensive healthcare risks may be easier to finance across larger populations.
Movement itself creates another category: obligations that require cooperation between origin and destination systems.
Different welfare functions may therefore operate at different scales. Some are delivered locally, some are financed more widely, and some require coordination between origin and destination systems.
None of this requires one world welfare state.
It requires institutions capable of coordinating across movement.
What a Mobility-Compatible Welfare System Might Look Like
The following is not a universal formula. It is a way of separating different obligations before deciding who should bear them.
| Type of obligation | Primary responsibility | Treatment after movement |
|---|---|---|
| Accrued pension or insurance rights | System where rights were earned | Preserve, aggregate, or export where applicable |
| Temporary insurance rights | Competent insurance system | Coordinate while identifying the responsible system |
| In-kind services such as healthcare | Institution where service is delivered | Provide where needed; allocate costs through reimbursement where appropriate |
| Residence-based assistance | Destination as residence deepens | Apply justified transition rules and equal-treatment principles |
| Minimum protection | Rights-protecting institutions at the appropriate level | Do not allow basic protection to disappear merely because a person moves |
The exact allocation can vary.
What matters is not forcing every kind of welfare into one rule.
Mobility Cannot Replace Welfare
The previous essay, “Equal Rights, Unequal Ability to Move,” showed that some people can move much more easily than others.
That matters here.
People with weak Exit options may also be people with the greatest need for social protection.
A political community therefore cannot answer poverty, disability, unemployment, or care needs by saying: you are free to leave.
Exit is not a substitute for social protection.
Foot Democracy adds political choice.
It does not remove collective responsibility toward those who stay.
Conclusion
Can welfare survive political mobility?
Yes—but not automatically.
Mobility creates real questions.
People contribute in one place and receive in another.
Destinations may face immediate costs.
Taxpayers may leave.
Benefits can affect migration incentives.
But none of this proves that welfare requires political immobility.
EU law already combines freedom of movement with differentiated access and equal-treatment rules.
European social-security coordination shows that rights can cross borders without creating one uniform welfare system.
Research on welfare incentives shows that effects vary by benefit, population, and migration regime.
The task is therefore to separate the questions.
What has already been earned?
What follows from current residence?
What requires contribution?
What must be protected immediately?
Which risks need wider pooling?
Which costs remain with the origin?
Which shift toward the destination as residence deepens?
Political mobility does not make welfare impossible.
It changes how welfare must be organized.
A welfare system compatible with political freedom must protect people without making immobility the price of protection.
Notes
Directive 2004/38/EC governs important aspects of free movement and residence for EU citizens and their family members. Article 24 establishes equal treatment for Union citizens residing under the Directive, while Article 24(2) allows specified exceptions, including social assistance during the first three months of residence. Article 16 provides a right of permanent residence after five years of continuous legal residence.
In Case C-333/13, Dano v Jobcenter Leipzig (2014), the Court of Justice held that certain social benefits could be refused to an economically inactive EU citizen who did not satisfy the Directive’s residence conditions. The judgment should not be read as a general rule allowing welfare exclusion of mobile EU citizens.
Corrado Giulietti, Martin Guzi, Martin Kahanec, and Klaus F. Zimmermann, “Unemployment Benefits and Immigration: Evidence from the EU,” International Journal of Manpower 34, no. 1 (2013): 24–38. The study examined 19 European countries from 1993–2008 and found a much smaller or essentially zero causal effect after addressing endogeneity, with no relationship for EU-origin migration.
Ole Agersnap, Amalie Jensen, and Henrik Kleven, “The Welfare Magnet Hypothesis: Evidence from an Immigrant Welfare Scheme in Denmark,” American Economic Review: Insights 2, no. 4 (2020), studied a Danish reform that reduced benefits for non-EU immigrants by about 50 percent. They estimated a reduction in net immigration of about 5,000 people per year and a migration-benefit elasticity of 1.3.
The World Citizen Society distinguishes portability, equal treatment, exportability, aggregation, coordination, and harmonization. It also maintains that a minimum social floor is not an unlimited welfare obligation and that Exit is not a substitute for social protection.
Further Reading
For the fiscal consequences of mobility, see “When Mobility Creates Fiscal Risk.”
For unequal ability to use political mobility, see “Equal Rights, Unequal Ability to Move.”
For the portability and coordination of rights across borders, see “How Can Rights Survive Movement?”
For mobility and unequal political leverage, see “Can Foot Democracy Discipline Majority Democracy?”
For the full institutional treatment, see Toshiyuki Nishimura, The World Citizen Society: Political Freedom, Democratic Choice, and the Institutions of a New Society, Chapter 15, “Welfare, Pensions, and Portability.”
