The Download of the Week is The Invisible Hand in Legal Theory by Adrian Vermeule. Here is the abstract:
Theorists have offered invisible-hand justifications for a range of
legal institutions, including the separation of powers, free speech,
the adversary system of litigation, criminal procedure, the common law,
and property rights. These arguments are largely localized, with few
comparisons across contexts and no general account of how
invisible-hand justifications work. This essay has two aims. The first
is to identify general conditions under which an invisible-hand
justification will succeed. The second is to identify several
theoretical dilemmas that arise from the structure of invisible-hand
justifications and that cut across local contexts. These are the
dilemma of norms, which arises because norms of truth-seeking, ethical
action or altruism can both promote and undermine the workings of the
invisible hand; the dilemma of second best, which arises because
partial compliance with the conditions for an invisible-hand
justification can produce the worst of all possible worlds; and the
dilemma of verification, which arises where theorists claim that an
invisible-hand process functions as a Hayekian discovery procedure - a
claim that is empirical but pragmatically unverifiable.
And from the paper:
Do
invisible-hand justifications actually work, in a given domain? Across
all domains, theorists recognize that the question is at least partly
empirical. The preferred mode of argument is then to implicitly shift
the burden of proof to the other side. One criticism of Bickel’s
contest theory of free speech, for example, is that “[t]he equilibrium
theory remains impressionistic and relies on premises that are both
unsupported and unlikely.”87 As for the broader claim that the
marketplace of ideas produces truth, its “most prominent weakness” is
“[t]he absence of . . . a demonstration, in the face of numerous
counter-examples,” that truth tends to prevail over falsehood.88
Likewise, a standard criticism of the argument that the adversary
system produces truth is that it is merely “a hopeful supposition
derived from advocacy ideology. There is no empirical evidence
indicating that the contests of advocates deliver truth in this
manner.”89 Such arguments rarely explain why the invisible-hand
justification should be rejected if there is no evidence for it; the
situation is equally compatible with there being no evidence against
it, and the lack of evidence favoring the invisible-hand justification
is not the same as positive evidence that the justification fails. The
critics, that is, confuse or exploit the distinction between absence of
evidence and evidence of absence.
This implicit burden-shifting
is the usual stuff of legal argument, but I believe that the empirical
problems surrounding invisible-hand justifications go deeper than in
many other domains. The key problem is that invisible-hand
justifications typically include an express or implied claim that
competition serves as a discovery procedure.90 The action of
participants in express or implied markets itself generates
information, to which the analyst may have no other means of access.
Hayek
famously made this claim as to explicit economic markets, yet Hayek
also suggested an analogy between markets and many other social and
political institutions that harness competition, such as “sporting
events, examinations, the awarding of government contracts, [and] the
bestowal of prizes for poems, not to mention science.” Such
institutions, Hayek suggested, are justified when and because we do not
otherwise know the information that the competition is designed to
reveal. “It would be patently absurd to sponsor a contest if we knew in
advance who the winner would be. . . . The only reason we use
competition at all has as its necessary consequence the fact that the
validity of the theory of competition can never be empirically verified
for those cases in which it is of interest.”91
On the logic of this claim, we might have no independent access to the
information by which to judge whether an invisible-hand justification
does or does not work. As to explicit markets, the analyst who asks the
question is a single mind, and on Hayekian premises can never generate
the information that socially distributed knowledge can produce through
the price system. In the context of adversary criminal trials, “[w]e
can’t learn directly whether the facts are really as the trier
determined them because we don’t ever find out the facts.”92 This is
slightly overstated, because in a tiny fraction of cases DNA evidence
or other conclusive proof emerges after the fact, yet it seems a valid
generalization. In the setting of free speech, it might be argued –
although to my knowledge no one has done so – that it is pointless to
ask whether the marketplace of ideas really tends as a general matter
to produce truths that cannot otherwise be discovered. Putting aside
the possibility of divine revelation, it is not obvious what
independent source of truth could be appealed to without begging the
question.
The lack of independent access to the information supposed to be
generated by competitive processes insulates Hayekian invisible-hand
justifications from criticism, but the price is high. Where competition
is said to function as a discovery procedure, the success of the
invisible-hand justification will be empirical but pragmatically
unverifiable. This makes it just as hard for proponents of the
invisible-hand justification to prove their case as it is for critics
to disprove.
Given this inherent difficulty of direct access to the necessary
evidence, proponents and critics fall back upon indirect strategies of
assessment. For their part, critics examine the inputs into the
competitive discovery procedure in order to indirectly impeach its
outputs. A typical response to the informational argument for the
adversary system, for example, is that it would be astonishing if the
partisan motivations and rhetorical tricks of advocates tended to
cancel each other out, rather than simply deepening the jury’s
confusion and thus tending to produce random outcomes.93
The problem with such arguments is that all invisible-hand processes
are astonishing,94 in the sense that their inputs always seem
disreputable taken in isolation. A narrow focus on the self-interested
motivations and self-serving actions of individuals in local contexts
will always make it seem surprising that the aggregation of individual
motives and behaviors could produce social goods overall. That is the
very point of invisible-hand justifications, their central alchemy. It
is a straightforward fallacy of composition to assume that because
market participants are self-interested, the market as a whole cannot
serve the public interest, however defined. It is equally fallacious to
assume that because advocates in jury trials use rhetorical tricks, the
interaction of their efforts must simply sow more confusion.
Highly recommended. Download it while it's hot!