The Argument for Rawls’s Principles
Overview
Rawls’s official argument is that the parties in the original
position would prefer his principles of justice to utilitarianism. (I
put the full statement of Rawls’s principles of justice at the bottom of this page.) Since the
decision by the parties in the original position is guaranteed to be
fair, Rawls maintains, the fact that they favor his principles over
utilitarianism is a reason why you and I should also prefer his
principles over utilitarianism.
Today we will discuss Rawls’s case for thinking that the parties
would choose his principles. Next time, we will talk about his reasons
for thinking they would reject utilitarianism. I am going to tell you up
front that, in the end, it all comes to pretty much the same thing. The
argument is going to be that utilitarianism is too risky when compared
with Rawls’s principles.
Choosing the Best Worst
The core of Rawls’s case is that the parties will prefer his
principles over utilitarianism if they look at the worst possible
outcome under each set of rules. That is, they should look at the worst
possible lives under each set of rules and choose the system with the
best worst outcome. This is the essence of the so-called maximin
rule.
To make his argument work, he needs to explain why the parties should
give that much weight to the worst possible outcome. Why shouldn’t they
take all of the other outcomes into account too? After all, we do not
normally make decisions by comparing only the worst possible results of
different choices.
Rawls maintains there are three features of the decision to be made
by the parties in the original position that make it rational for them
to focus on the worst possible outcome.
They cannot estimate the probabilities of being in any particular
social position.
They do not care very much about getting more than they could get
in a society governed by Rawls’s principles.
They find the worst position in a society governed by
utilitarianism to be unacceptable.
We will talk about the first point, the one about probabilities, next
time. So let’s put that to one side for now.
What about the second point? We don’t have the material to evaluate
it. Here is what I mean. Suppose we ask how the parties in the original
position could know that it is true. Rawls says that he will supply the
argument for this conclusion in a subsequent part of his book. Since it
is very long and relies on detailed psychological theories, we do not
have the time to assess it.
I have read it and I did not find it persuasive. We know that
everyone cares at least a little about getting more than the minimum:
the things they get are primary social goods and, by definition, these
are things that everyone wants. Who is to say that many people do not
care a lot, especially if they think that they could make their
standard of living significantly higher without the Difference
Principle? There are lots of people who want lots of different things.
For example, maybe you would be willing to give up some political power
for the sake of economic gains. You might think that privacy is more
important than unrestricted free speech or vice versa. Maybe
you want to be an entrepreneur and you would chafe under the
restrictions on economic liberty in a Rawlsian society. Given these
kinds of examples, I don’t see how the parties in the Original Position
could know that they people they represent don’t care about
gains above the minimum.
The Third Point
If I’m putting off the first point for next time and I’m telling you
both that we cannot evaluate the second point and that I don’t think
it’s very good, what are we going to talk about? You guessed it: the
third point!
Rawls’s best argument, in my opinion, is that the parties know the
people they represent would find the worst possible outcomes under
utilitarianism unacceptable and that they would not find the worst
possible outcomes under Rawls’s principles unacceptable.
The point is pretty simple. Utilitarianism could allow almost
anything: slavery, medical experiments, summary executions, you name it.
If it could be needed to bring about the greatest overall good,
utilitarianism would have to be for it. So the worst possible
outcome under utilitarianism will be pretty bad. By comparison, the
worst possible outcome under Rawls’s principles is not so bad: extensive
protection of personal liberty, equal opportunity, and a significant
guaranteed income.
Given that the choice is between utilitarianism and Rawls’s
principles, why run the risk of being made a slave? I think that’s a
pretty good question.
We will, obviously, return to this next time. One thing to think
about is why utilitarianism would ever allow slavery or the other
horrible stuff. What does life have to be like for that to be an option
for a utilitarian? And how likely is it that this would happen?
Main Points
These are the points you should know or have an opinion about from
today’s class.
- Why Rawls says the parties in the original position would focus on
the worst possible outcomes.
- Why he thinks they would prefer his principles to
utilitarianism.
What are Rawls’s Principles?
Rawls modifies and amends his principles of justice throughout the
book. This is his final statement of what they are (Rawls 1999, 266).
First Principle of Justice
Each person is to have an equal right to the most extensive total
system of equal basic liberties compatible with a similar system of
liberty for all.^[By “basic liberties,” Rawls means “political liberty
(the right to vote and to hold public office) and freedom of speech and
assembly; liberty of conscience and freedom of thought; freedom of the
person, which includes freedom from psychological oppression and
physical assault and dismemberment (integrity of the person); the right
to hold personal property and freedom from arbitrary arrest and seizure”
(Rawls 1999, 266,
53)
Second Principle of Justice
Social and economic inequalities are to be arranged so that they are
both:
to the greatest benefit of the least advantaged, consistent with
the just savings principle, and
attached to offices and positions open to all under conditions of
fair equality of opportunity.
First Priority Rule (The Priority of Liberty)
The principles of justice are to be ranked in lexical order and
therefore the basic liberties can be restricted only for the sake of
liberty. There are two cases:
a less extensive liberty must strengthen the total system of
liberties shared by all;
a less than equal liberty must be acceptable to those with the
lesser liberty.
Second Priority Rule (The Priority of Justice Over Efficiency and
Welfare)
The second principle of justice is lexically prior to the principle
of efficiency and to that of maximizing the sum of advantages; and fair
opportunity is prior to the difference principle. There are two
cases:
an inequality of opportunity must enhance the opportunities of
those with the lesser opportunity;
an excessive rate of saving must on balance mitigate the burden
of those bearing this hardship.
References
Rawls, John. 1999. A Theory of Justice. Revised edition.
Cambridge: Harvard University Press.