1. It's a really bad idea to give high
skill immigrants a leg up in the immigration process. It's market planning that we would balk at if
we did it for foreign investment or foreign trade but for some reason it's
palatable for foreign flows in labor. We do not have high skill labor shortages
and decades of research has shown that. The high skill immigration programs are
often exploitative of workers. Science and engineering market failures are
principally on the demand side, not the supply side. Plus it simply goes
against our values. If we went all-in for an Australian or Canadian style
points system program we might as well just remove the "huddled masses
yearning to breathe free" plaque from the Statue of Liberty.
There’s something to this argument if you see immigration
through the lens of comparative advantage, as this
Bryan Caplan post does. We gain from trade when we trade things we are
relatively better at making for things that other people are relatively better
than making. But of course certain goods and in particular many services are
much harder to trade across borders – that’s one reason why the gains of
immigration are so high in the first place. So from this perspective, we don’t
want to be letting in people who can produce the things we’re just as good at
producing – academics and computer scientists. We want to let in the people who
are low-skilled, because their opportunity cost of producing low-wage services
is much lower than ours, so there can be huge gains from trade.
That’s fine as far as it goes. But there are a bunch of
other good reasons why you’d want to promote high-skilled immigration. For one
thing, one of the biggest benefits of freer immigration are agglomeration
economies. When people cluster together, they all get a lot more productive.
There are reasons to think that these effects are more important for
high-skilled workers. If you’re a waiter, your productivity is not really
affected that much by the number and quality of the other waiters around you.
But if you’re a scientist or an entrepreneur, then you do gain a lot from
getting to work with and share ideas with a larger population of other scientists and entrepreneurs. I
don’t have any hard evidence to hand, but anecdotally the ‘place premium’ is
higher for higher skilled workers, for this reason. Moving a physics PhD from
Somalia to California raises their productivity more than it would an unskilled
worker’s.
From the perspective of American welfare, which Kuehn thinks
is what we should focus on, there are also benefits from high-skilled
immigration. An influx of very low skilled immigrants would increase local
inequality, with its attendant costs – lower civic trust, worse social cohesion
and so on. Higher-skilled immigrants are more likely to assimilate more quickly
into American society. Obviously the higher immigrants’ incomes, the larger the
fiscal benefits, meaning a lower tax burden on current Americans. And given
diminishing marginal utility of income, we should be more worried about wage
suppression of low-skilled native workers than the high-skilled.
Of course, there are other reasons to accept the low-skilled
in. They themselves are likely to experience a bigger improvement in their
living standards than a high-skilled person would. And the costs of filtering
out the high-skilled from the low-skilled are probably quite high, leading to
an expensive and bureaucratic system that ends up deterring all potential immigrants from applying.
So a mixed bag of immigrants is probably more desirable.
2. Illegal immigrants are exactly who we want here and
occasional amnesty is not that bad of a policy. Most people insist
they love immigrants but want them to be here legally and talk about how
illegal immigration is unfair to people who wait in line to be legal
immigrants. But being an illegal immigrant reveals important information about
the immigrant: these people really want to be here. They want
to be here so much they will take personal risks to avoid the wait. They also
like American society more than they like Congress or the federal bureaucracy.
That doesn't seem like that bad of a perspective to have. People will also
sometimes talk about how amnesty is bad because it sends mixed signals and it
will indicate that our commitment to immigration enforcement isn't credible.
But amnesty legitimates the immigrants who have revealed this important
information about themselves in the decision to come over illegally. Of course
there are a lot of problems with illegal immigration, even for the immigrant
themselves. They obviously don't get to live fulfilling lives while their
status is in that kind of limbo. So I'm not necessarily advocating restricting
immigration flows just to get a crop of dedicated illegals. What I'm saying is
that people need to think about the self-selection implied by illegal
immigration and realize that those are exactly the sort of people we want as
fellow citizens. How many natives would go to such length to get into the
United States?
Again, to some extent I agree with this – self-selection is an important part of why immigrants are so great for the country and the economy. But that’s true of any kind of immigration. The kind of people who are desirable enough employees for companies to subject themselves to the H1-B visa process are going to be the ‘best’ immigrants. The kind of people who would scrimp and save in order to pay an immigration tariff would be the ‘best’ immigrants. Even under completely open borders, the kind of people who would be willing to uproot themselves and their families in search of a better life would be the ‘best’ immigrants.
And illegal immigration is obviously horribly inefficient. Mexican ‘coyotes’ could be doing something much more productive. So could document forgers. The immigrants would be able to do their jobs a lot better if they could work on the books.
More than that, though, the strategy of illegal immigration followed by amnesty as a backdoor way of increasing immigration is counterproductive. It marginalises immigrants, makes voters less empathetic towards them – and if the majority of voters don’t think you’re ‘like me’ then the law is not going to treat you well. A sense that the law is being flouted doesn’t endear people to more immigration. If immigrants were permitted to come legally then they would assimilate much better into society, be more likely to speak English and probably people would feel better about letting them in.
Now, I know Daniel isn’t suggesting that this is a first-best policy, and I agree with him that we could do a lot worse than periodic amnesty for large numbers of illegal immigrants. But that’s hardly a ringing endorsement for the policy.
3. The population that should benefit from immigration policy is a moving
target. You hear two different things on this issue. First, the Bryan
Caplan types think that we should maximize global welfare. I think this is
obviously wrong. When we get together to form a government we do it to satisfy
our own needs and internalize our own externalities. The world should
have no expectation of free riding on our collective action. That doesn't
mean we don't care about the world when we make policy - it's only to say that
the social welfare of the world should only enter policymaking to the extent
that American citizens value the social welfare of the world. So policy should
be made to maximize the welfare of Americans. This is fine for most
policy, except immigration. When it comes to immigration the very question of
which population has standing in these decisions is a moving target
because the whole policy debate is about who is and is not an American! Now
it's possible there's a stochastically dominant policy that will be preferred
no matter what the population of "Americans" that we decide on is,
but that's not guaranteed. The question of whose utility we are maximizing and what
immigration policy should be is self-referential. What I draw from that is that
we shouldn't stake too much on thinking about a specific population that we're
trying to help. We should rely on other decision rules and principles. The
Bryan Caplan types should stop talking about what's best for the world and the
rest of the country besides the Bryan Caplan types should stop talking
about what's best for Americans.
As a Bryan Caplan type, I have a good counterargument to
this, which is that the world is not free-riding on our collective action. Freedom
of movement is not something we graciously allow, it’s something we gratuitously
restrict. When we restrict immigration, we are killing, not letting die. We are
chaining
Julio to the tree. And it’s pretty obvious that we shouldn’t be allowed to
do whatever we want to foreign people if it makes the ‘master
race’ better off.
I do think it’s a tough question to think about. If we admit
that we’re trying to maximise the welfare of Americans, that naturally leads to
the question – which Americans? Do
the children of potential immigrants, who would be citizens, count? Schools in
the USA are a lot better than in Mexico. How much more weight should we assign
to low-income Americans’ wages as opposed to high-income?
So Kuehn decides that we
shouldn’t assess the policy on utilitarian grounds at all. But then if we don’t
think about policy based on whether it would increase welfare, what do we
decide based on? If we see freedom of migration as a natural right, then it
would be unjust to restrict immigration even if it did substantially decrease
global welfare – but it’s clear that Kuehn doesn’t take this view. So what criteria
is he using to evaluate immigration policy?
Ultimately, I think the
answer to this has to be a Pareto-efficient immigration policy. Because the
benefits of immigration are so large,
we could easily design the policy in a way that increased everyone’s welfare. Then we wouldn’t have to care so much about
which groups’ welfare we should be thinking about.