The Ongoing Folly of Just Price Theory
If you want a
veneer of moralism on your economic policy, send in the bishops.
In recent
testimony given to the U.S. Senate Committee on Health, Employment, Labor and
Pensions the Bishop of Stockton, California, Stephen E. Blaire, argued for an
increase in the minimum wage on the grounds that a just wage is necessary to
promote and protect human dignity.
“Work has an
inherent dignity,” said Bishop Blaire, “so just wages
gained from work support that dignity. Insufficient wages violate it.”
His words jibe
with the teachings of medieval philosopher St. Thomas Aquinas. Aquinas believed
that goods held an objective value, and selling a good for more than that
objective value would be unjust. So the theory of just price holds that a good
or service has, well, an objectively just price. Purchasing or selling a good
for anything but the established just price violates justice.
The trouble is,
the only true just price is determined by the desires of buyers and sellers.
Not the priest. Not the statesman.
In other words,
the theory of a just price prompts the question, “Who decides what price is
just?” Economics outgrew the theory of a just price during the Enlightenment
and again in the late nineteenth century. Economists William Stanley Jevons,
Léon Walras, and Carl Menger all revolutionized economics by focusing upon
subjective valuations. All people have different preferences. For example, Joe
wants to buy a candy bar with his dollar while Mary wants to buy a Coke with
hers.
All people have
the inherent ability to rank their preferences in order of satisfaction.
Scarcity, being a fact of nature, forces us to make such preference rankings.
Since we cannot satisfy all of our desires, we must choose some over others.
The very act of choosing one preference over another implies a ranking and reveals
which good or service is more satisfying to the individual.
If value is
subjective, then each person values goods differently. Any one person or group
of people cannot establish a “just price”—and matters don’t change in the case
of labor. The natural interaction between the buyer who wants to get the most
for the cheapest price, and the seller who wants to sell the least amount for
the highest price, will form a happy median called equilibrium. Equilibrium
assumes there are multiple buyers and multiple sellers, all of whom are having
that same set of natural interactions. Equilibrium serves as the price
determined by simple supply and demand.
Apply this logic
to wages. Arguing for just wages is the same as arguing for just prices. In
that line of thinking lays the idea that someone’s labor has a defined value.
Many potential employees value and rank their time the same way they rank
everything else. Some people value their time more than others. Those who do
not value their time highly will be willing to work for less than those who do.
The wage is simply the price established between the buyer of labor (the
employer) and the seller of labor (the employee). Wages cannot be established
by fiat—nor by any other method than the agreement struck between the employer
and employee—without running afoul of each party’s preferences. The ethicist
must surely have something to say about the “justice” of tossing out the
preferences of two parties to an agreement.