Journal of Comparative Economics 35 (2007) 294–308
www.elsevier.com/locate/jce
Juries and the political economy of legal origin
Mark J. Roe
Harvard Law School, Griswold 502, Cambridge, MA, USA
Received 10 December 2006; revised 9 February 2007
Roe, Mark J.—Juries and the political economy of legal origin
Legal origin has been brought forward as a key influence on modern finance, because common law
institutions protect investors better than do civil law institutions, it is claimed. These institutional differences
are said, in the legal origin explanation, to have been hard-wired into nations centuries ago. Daniel Klerman
and Paul Mahoney challenge the legal origin description of the jury as emerging and achieving prominence
in 12th- and 13th-century England while remaining unimportant in France. That contrast has been offered as
a key difference between common and civil law, one dependent on the differences in relative power between
the English monarch and the French one in the 13th century. But the investigation of the jury here should
give pause to those promoting the overall legal origin thesis. The first reason to hesitate is that the jury
is not central to protecting outside investors in common law nations. Indeed America’s premier corporate
court—the Delaware Chancery court—sits without a jury, and the usual view in legal circles is that the
jury’s absence (and the resulting decision-making by expert judges, not juries) is a strength of the court,
not a weakness. The second reason is that Britain did not generally transfer the jury system to its colonies,
because to have done so would have conflicted with its colonial goals. That is not a secondary point: political
economy issues regularly trump issues like legal origin—colonial policy was just one example of how
political goals displace secondary institutions. The third reason is that analysis for the jury differences
between civil and common law nations depends on political economy differences centuries ago. But if
political economy differences determined institutional differences in the earlier centuries, it is plausible
that political economy differences in the intervening centuries would also have affected financial outcomes.
Indeed modern political economy differences that lead some nations to support capital markets and others to
denigrate them could explain modern financial differences as much as, or more than, 13th century political
differences. Journal of Comparative Economics 35 (2) (2007) 294–308. Harvard Law School, Griswold
502, Cambridge, MA, USA.
© 2007 Association for Comparative Economic Studies. Published by Elsevier Inc. All rights reserved.
JEL classification: F54; G18; G30; G38; K22; N20; O16
E-mail address: mroe@law.harvard.edu.
0147-5967/$ – see front matter © 2007 Association for Comparative Economic Studies. Published by Elsevier Inc. All
rights reserved.
doi:10.1016/j.jce.2007.04.002

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Keywords: Colonial institutions; Civil law; Common law; Corporate and securities regulation; Economic development;
Financial development; Juries; Legal origin; Political economy of property protection; Property rights
0. Introduction
Legal origin—common law versus civil law—is important to the past decade’s finance theory.
Peculiarly, the theory has not had traction in the academic legal literature, which might be sur-
prising given academic disciplines’ understandable tendency to see their own issues as central
and determinative. What legal academic commentary that the theory has provoked has either been
skeptical that the legal origins channels that the law and finance literature promotes are really so
important or skeptical that origin could be as important as modern political economy consider-
ations. That is, while the legal literature hardly denigrates law’s importance, it has doubted the
importance of legal origin to financial development. Mahoney (2001), although sympathetic in
part (particularly to the idea of a detrimental statist nature of civil law), denigrates the idea that
civil law codification can be as important as the legal origin theory had hypothesized, since so
much of American corporate and commercial law is codified. Coffee (2001) sees the propensity
of some countries to disrupt their stock markets, which would have provided the needed investor
protections regardless of underlying legal institutions, as central. Roe (2000, 2006) shows that,
while property rights and investor protection are important, legal origin differences cannot ex-
plain the institutional differences, since common law countries use non-common-law institutions,
such as securities regulators, and not just common-law-oriented fiduciary duties. He shows that
modern political economy forces are likely to explain modern financial and investor protection
differences in wealthy nations better than legal origin.
In Legal Origins? Klerman and Mahoney investigate central elements of Edward Glaeser and
Andrei Shleifer’s (2002) analysis of how differences between common and civil law emerged in
the 13th century, critiquing a paper called, simply enough, “Legal Origins.” There, Glaeser and
Shleifer said that the English judiciary was decentralized relative to the French and that political
differences between England and France at the time best explained that relative decentralization.
The relative power of the king in each nation differed, the barons feared the king more than one
another in one nation (and one another in the other nation), and each nation’s economic structure
differed, with large contiguous land holdings in France giving the 13th century French barons
more power and autonomy than the British barons.
I had much admired Glaeser and Shleifer’s investigation and explanation, because it focuses
on power and politics in the 13th century as explaining legal structure outcomes, despite that I
am not a fan of the legal origins strand in the law and finance literature overall, as the citations
in the first paragraph of this note suggest. I am skeptical of their big picture story because, first,
it exaggerates the impact on financial outcomes of differences in legal style, when there are
much more important—and more modern—explanations for the differences than legal origin.
It also privileges corporate legal institutions in finance, which while important are usually less
critical than whether the polity has an ongoing antagonism to, or affinity for, capital markets. If
the polity likes capital markets, then capital markets will tend to get the supporting institutions
that they need. While older legal institutions are important, they are only part of the story and
probably not the central one. Equally importantly, the differences in institutions between the legal
origins are not so wide that either one is disabled or privileged in achieving the goals sought,
such as investor protection primarily and property protection more broadly. Indeed, common law
countries use regulators, such as the Securities and Exchange Commission, and codes, such as the

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securities regulations and the uniform commercial code, to deal with commercial disputes among
investors and merchants. When we use those kinds of institutions, we forgo whatever advantages
common law institutions, such as fiduciary duties, could have provided. Investor protection can
be achieved through institutions available to both legal traditions. The big picture issue is more
likely to lie in whether the polity is ready to accept and promote financial markets, not what
institutional forms it classically preferred.
But I admired the 2002 Legal Origins piece because it convincingly focused on the issues of
power and politics in the 13th century, cogently analyzing how differing political configurations
in England and France then seemed to have yielded strong juries in England and centralized
judging in France. I also admired the 2002 piece as a sustained effort to link legal origins insti-
tutions to outcomes in a tight way; the legal origin literature displays many regressions but few
extended inquiries beyond the 2002 piece linking origins to outcomes theoretically and histori-
cally. So, it is disappointing to see that Klerman and Mahoney view the history there as not fully
accurate, with the actual structures (English courts were quite centralized, they say, and under
the king’s thumb in the 12th century and for centuries thereafter) the opposite of what Glaeser
and Shleifer described. Since both sides rely on standard sources, perhaps there is an uncertain
historical record. It is also possible that some of Glaeser and Shleifer’s jury decentralization story
can be preserved if we move beyond their jury story, which Klerman and Mahoney say is inac-
curate, to a more general explanation for 13th century English decentralization. I shall explain
how below.
Here I make three points about the interplay between the emergence of the jury in 13th century
England and modern finance. The first is that legal origins proponents should have paused in their
other work in which they assert that legal origin has a major impact on financial outcomes around
the world, because the jury is not central to financial regulation in many important common
law nations. Indeed, its existence on the periphery of finance may be detrimental to financial
development. If it is the jury that needs to be explained to understand differences in legal origin,
but the jury is not important to finance (or is in fact detrimental), then that suggests legal origin
differences may be less important to modern finance than the origins literature has it.
Second, for the jury story to resonate with the overall legal origin story, Britain would have
had to have generally transferred the jury system to its colonies. As Glaeser and Shleifer state
(at 1194), in the 13th century, “France went in the direction of adjudication by royally controlled
professional judges, while England moved toward adjudication by relatively independent juries.
Over the subsequent millennium, the conditions in England and France reinforced the initial di-
vergence in the legal systems. Moreover, the transplantation of the two legal systems . . . may
account for some crucial differences in social and economic outcomes in countries that are re-
ported in empirical studies.”
But did Britain uniformly transplant the jury to its colonies? While the jury has had a long,
deep, and important role in the United States and Britain, it seems that most British colonies
did not usually use the jury for civil trials and many, perhaps close to a majority, did not for
criminal trials. The jury clashed with British colonial policy: decentralization and local em-
powerment was not something that the British sought, particularly after its experience with
the jury in Ireland. Britain’s wariness in transferring the jury around the world exemplifies
a general and deeper point—it illustrates the bigger concept that legal origin institutions are
trumped, and perhaps trumped easily, by modern political economy forces. Britain was in the
business of running a colonial empire. If the jury conflicted with its colonial strategy, then out it
went.

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Third, the structure of the legal origins jury argument is in tension with the overall, bigger
picture legal origins thesis. The overall legal origin thesis is that differences in French civil law
and common law legal origin determine (or strongly influence) differences in modern financial
markets. Why are there differences in institutions? The answer lies, the theory has it, in impor-
tant part in differences in the political economies of 13th century England and France: powerful
barons with contiguous land holdings in France, a strong king in England. Differing legal in-
stitutions emerged then based on the differing political configurations of the time—so far, so
good—those institutional differences persisted, and those persisting differences in institutions
determine differences in financial markets in the 20th and 21st centuries.
It is the conclusion in that chain that the legal origins’ authors ought to have been more wary
of: If the political economy of the 13th century explains 13th century outcomes, why should
we not look as well to 20th century political economy explanations to explain 20th century out-
comes? Should we not look to historical experiences more recent than the 13th century as well?
If political economy differences were important in the 13th century, might political economy
differences of the 20th century also be important, perhaps even dominant?
I explore some of these issues below.
1. The emergence of juries in the 13th century
1.1. Thirteenth century political differences between England and France
Medieval, thirteenth century France was unstable, while England was at peace. England’s
king decentralized judicial decision-making, while the French king centralized it. A key piece of
English decentralization was the emergence of the jury, say Glaeser and Shleifer.
According to Glaeser and Shleifer, the relative power of the king in Britain and France in-
duced centralized French courts, because this was the only way that the relatively weak French
king could control proceedings and because the rivalrous barons acceded to the king’s control
since they feared one another more than they feared the king. Meanwhile, the more confident
English monarch in the more peaceful realm could allow for decentralized juries and courts that
could counter the local barons. Glaeser and Shleifer focus in particular on bullying, with the pow-
erful French barons more likely to bully local juries successfully than would the weaker English
barons.
1.2. The Klerman–Mahoney reconsideration
Klerman and Mahoney say this story just was not so: British courts were, they report, cen-
tralized in the 12th century and for centuries thereafter. Indeed, this is as one might expect (and
indeed Glaeser and Shleifer expected that the powerful English king would have centralized ju-
dicial power and were surprised to conclude that he had not): The powerful monarch tries to,
and succeeds in, centralizing authority, while the weaker monarch cannot. Moreover, the doc-
trines and institutions that emerged then that could have had later pro-investor effects seem to
have emerged from the most centralized, most “French-like” features of the English courts, say
Klerman and Mahoney. If there is a true institutional difference between the common law and
the civil law, say Klerman and Mahoney, it emerged centuries later.
Klerman and Mahoney point out that rather than dispersing the English judiciary, the English
kings, from Henry II onward, kept the judges on a short leash. Physically the king kept them
close at Westminster, that is, close to the king. Typically when they traveled through England,

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they did so with the king. And the English judges were a small group that the king controlled
more easily than he could have controlled a larger group of judges. And, yes, the king’s judges
sought to build a common law, but common in the sense of uniform throughout the king’s lands.
Moreover, they point out, doctrines and institutions like fiduciary duties—useful to modern out-
side investors in enterprises—emerged not in the law courts that practiced the common law, but
in the king’s chancery courts, which emerged in the 14th century as the most centralized of the
English courts, the most under the king’s control, and the least tied to juries. Hence, they say,
whatever differences there are today between common and civil law emerged after the 13th cen-
tury and, hence, the 13th century history does not give one the opportunity to reject the basic
idea that law and social/economic/political institutions are largely determined simultaneously in
favor of a legal origins theory. Whatever emerged in the 13th century does not seem to have de-
termined later institutions, mostly because England was centralized in the 13th century. Perhaps,
they say, the divergence occurred later, when British merchants obtained more political power in
the 17th century and then got the kind of court system they preferred. And, they suggest, perhaps
the later, continuing divergences had much to do with the continuing ascendancy of the Whig
commercial interests in England, an ascendancy that presumably allowed the Whigs to get—and
keep—a legal system that was not antagonistic to their interests.
2. The legal origin theory’s bigger picture
Let us take a step back from Klerman and Mahoney’s critique. For the moment, let us take
Glaeser and Shleifer’s view of the 13th century differences as accurate, despite Klerman and
Mahoney’s criticisms. What impact should that analysis have on legal origins’ bigger picture?
The jury analysis in “Legal Origins” does not fit well with the legal origins big picture on several
important margins.
First, the historical record does seem to be contestable here, since both sides use standard
sources. Not being a legal historian or even someone who consults legal histories of the Eng-
lish 13th century regularly, I am not well-positioned to arbitrate. Moreover, even if Glaeser and
Shleifer’s sources are inaccurate, perhaps enough of their basic 13th century story could still be
preserved to be useful. That is, Glaeser and Shleifer interpret the Magna Carta’s judgment by
one’s peers as guaranteeing a jury trial. Klerman and Mahoney point out that the jury trial was
not so used, that “judgment” required judging not jurying. The Magna Carta did not guaran-
tee jury trials, they argue, using standard historical sources. However, the core of Glaeser and
Shleifer’s specific argument here could be saved if they view the judgment of one’s peers as a de-
centralizing move, one that reduced the king’s power, even if King John never agreed to give the
barons a true jury. Still, Klerman and Mahoney say that the next phrase in the Magna Carta—or
the law of the land—reasserts the king’s authority. Here Glaeser and Shleifer might argue that
this still confined the king to avoid actions based on caprice, requiring consistency with prior
rulings.
So, let us consider the implications if Glaeser and Shleifer’s 13th century view is, on the
whole or in important part, correct. How does it fit with the bigger legal origins picture? It still
fits awkwardly.
2.1. What is the bigger picture?
The bigger picture is straightforward: Legal origin is important to modern finance because
common law nations protect outside investors in firms better than do French civil law nations.

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Common law nations use fiduciary duties to protect outside investors ex post, after transactions
occur; they also prefer transparency and property rights; and they are relatively decentralized
and non-statist. The emergence of the 13th century jury—in the version Glaeser and Shleifer
promote—fits the bigger picture, they say, because the jury decentralizes power, reflecting and
promoting the barons’ independence from the English king. The less centralized state allowed
institutions that could protect property rights to emerge in a way that a centralized state might
not have allowed.
They state: “starting in the twelfth and thirteenth centuries, the relatively more peaceful
England developed trials by independent juries, while the less peaceful France relied on state-
employed judges to resolve disputes. It may also explain many differences between common and
civil law traditions with respect to both the structure of legal systems and the observed social and
economic outcomes.” English systems promote commerce, French systems promote state power,
and some important packet of those differences trace back to the 13th century.
2.2. How important for modern commerce?
One can see how the jury could be important to commerce. With the jury drawn from the
populace, the state would find it harder to dominate decisions left to the judiciary. Judicial decen-
tralization would facilitate commerce. Property owners would be less fearful of state incursion. In
contrast, a system of state-appointed judges operating without juries could promote state power
at the expense of property interests in medieval times and business interests generally in modern
times.
On the surface, there’s something appealing in the idea. But some facts cause problems, prob-
lems that should induce us to rethink the idea and possibly reject it. First, the facts. The key
on-the-ground American lawmaking institutions that affect outside investors are the Delaware
Chancery Court and the Securities and Exchange Commission. The SEC operates without a
jury, of course. It is staffed by government-appointed officials. But—and here is the problem
for this arm of the legal origins theory—so does the Delaware Chancery Court, as Klerman
and Mahoney note. Yet the absence of the jury is regularly seen by legal commentators to
be an advantage of the Delaware courts over others, as Kahan and Kamar (2002, pp. 708,
709) assert. A lively literature in legal academic circles has arisen on why American firms
incorporate away from their original place of business and what the consequences of that
movement are. It is quite plausible and consistent with the range of that literature that Amer-
ican corporations are incorporating into Delaware in part, perhaps in major part, to escape the
jury.1
Moreover, English civil courts do not use juries, Klerman and Mahoney point out. Hence, the
jury idea could have induced legal origins theorists to re-think whether the core common-civil
law differences are really important to finance. If the jury is a key characteristic of the common
law, but if financial interests try to escape the jury and often prefer (French-like) expert judges to
juries, then it is open to question whether the common law generally, or this feature of traditional
American and British law, is basic to finance.
1 To be sure here, other states’ corporate laws are often dealt with via jury trials and when the SEC sues wrongdoers
it usually needs to operate before a jury. Trials for securities damages go to juries, but my understanding is that players
consider the jury’s awards to be erratic. And recall that Britain hardly uses the jury at all in non-criminal trials.

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2.3. Is the jury uniformly important in common law nations?
For the jury story to resonate with the overall legal origin story, Britain would have had to
have generally transferred the jury system to its colonies. But did it? It is true that juries have had
a long and storied role in English and American jurisprudence. But it appears that many, perhaps
most, former British colonies do not use juries for civil trials and perhaps a majority do not for
criminal trials. For Britain, a colonial jury clashed with British colonial policy: Decentralization
and local empowerment was not something that the British sought, particularly after their difficult
experience with the jury in Ireland. This is not a secondary point—it fits with the bigger concept
that political economy considerations trump legal origin institutions.
American colonists used the power of the jury to subvert the authority of royal governors and
the Crown. Jury nullification resulted in the acquittal of John Peter Zenger (tried for criminal
libel against British interests), smugglers prosecuted under the Navigation Acts, rioters against
the Stamp Act, and participants in the Boston Tea Party, as Vogler (2001, p. 528) retells. One
royal governor complained that a “Customs House Officer has no chance with a jury let his cause
be what it will,” Moore (1973, p. 110) reports. Irish juries were reluctant to enforce the law,
which they saw as a tool of English domination. Their reluctance led to lower conviction rates
for all crimes in Ireland than in England and Wales, Johnson (1996, pp. 273–277) states, such that
Britain suspended Irish juries during periods of unrest (Quinn, 2001, p. 200). As a 19th century
colonial power, the British had reason from experience not to deeply embed the jury in its new
colonies. As Young (1988) concludes, even if the French origin systems had more centralizing
and less litigious potential than the British: “By the time of the British imperial occupation of
African territory, the dangers to colonial hegemony in indiscriminate transfer of British legal
practices was well recognized. Thus, there was no question of application of the jury system
of criminal law, which had so undermined the effectiveness of the law as a vehicle for colonial
control in Ireland and the North American colonies.”
The British did introduce the jury trial to India, extended it haltingly, but never fully em-
bedded it throughout India. They used it in India to convince Europeans to feel safe working
and living there, because trial by a jury (of one’s European peers) protected Europeans from an-
swering for crimes against Indians, Pullan (1946, p. 109); India abolished it after independence,
Vogler (2001, p. 532), presumably because Indians saw it as a tool of hegemonic power. African
encounters with the jury are parallel: Britain limited its use and, where used, used it primarily
to protect Europeans against native Africans (Mawer, 1961, p. 893; Vogler, 2001, p. 539). This
illustrates the complexity of context: The jury might well have been a decentralizing institution
in 13th century England. But, in some colonies Britain used it to centralize power by freeing
colonizing Europeans from native justice.
To be specific here and current, several representative common law countries do not seem to
systematically use juries: Botswana, Kenya, India, Nigeria, Pakistan, and South Africa. Others
do, but usage is by no means uniform. Hence, if the purpose of examining the jury’s emergence
in England is to find a foundation for jurisprudence and decentralization in English legal origin
countries, that showing has not been made. And a preliminary look at the legal history suggests
it would not have been easy to find that jury foundation throughout the common law world.
2.4. Rebuilding Glaeser and Shleifer’s jury-decentralization view
Legal origins theorists might have re-thought the jury’s impact in the following way: The
current direct presence or absence of the jury in corporate and commercial cases is not really

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so important (recanting some of the implications of the 2002 article), they might concede. But,
overall the jury represents a decentralized system that protects property. It is an example of
decentralization but not intrinsic to it.
Here is how, they might say: For governments (or the powerful, such as landowners in the
13th century and corporate insiders in the 20th) to take property from another, they needed
to get courts to approve or acquiesce. But, the argument would run, if property owners are
well distributed through the populace—or at least among those who could be selected for jury
service—property would be protected. If the judge—appointed by the legislature, the king, or
those in authority—acted alone, civil-law-like, the judge might run roughshod over property
rights if the judicial institution lacked a check from a property-sympathizing jury, one composed
typically of property owners. Hence, the ubiquity of common law jury trials protected property,
with the operational tool being that the jury would be chosen from a populace of property-
holders.2
Though plausible, that argument gets tied up in knots when we try to tie it to the bigger le-
gal origin theory. What makes that kind of jury work is that property is well-enough distributed
that property-owners dominate juries, or the rules for jury selection make property-ownership
a likely characteristic of the median jury member. But the same pro-property result would be
reached if property-owners dominate the legislature (or, again, if the rules for legislative compo-
sition favored property-owners). If property owners dominate the legislature, then it will produce
property-oriented legislation. It will set up rules for its courts that protect property. But if so, then
the judicial system derives from the composition of society (or, better, from the composition of
its legislative commanders). Even if the polity had no jury, if the legislature (or the electorate
or the relevant decision-makers) were dominated by property-owners, then that society’s rules
would protect property and the composition of the jury would not matter, because even if there
were no jury, judges would have to respect property.
Hence, it is not whether a nation uses a jury that matters but whether the nation’s politi-
cal institutions support or denigrate property rights. If the legislature supports property and the
legislature is powerful, then in the end even judges without juries will protect property. If they
would not protect property, the legislature (or the executive, or the electorate) would not let
them be appointed. If property-disrespecting judges did somehow get appointed, the legislature
would take away their authority. Most likely, severe conflict would not arise, because judges and
legislators would come from the same milieu—the same law schools, for example—and have
similar world-views. If property is not well distributed among the jury population (and if the
jury did thwart property rights), then the property-oriented legislature would disband or con-
trol juries (so as to protect property). Or courts would adapt to the legislative realities, in the
way Spiller and Gely (1992) suggested. Perhaps through happenstance, this sequence occurred
in the United States: A property-oriented polity allowed a corporate law institution—Delaware
Chancery Court judges operating without a jury—to emerge and become important because it
would protect corporate property better than a jury-based court would.
And the converse is true as well: If the legislature is antagonistic to property, then, first, the
composition of the jury pool probably would not be property-protecting and, second, even if it
is, the rules and institutions would not last long against a property-defiling but powerful legisla-
ture.
2 Or, if they gave up their jury argument, Glaeser and Shleifer might say that the Magna Carta, by providing for
judgment by one’s peers, protected property owners enough in the 13th century that the baronial property owners would
invest in improving their property.

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Thus, the common law jury argument standing on its own is a dead-end.
This sequence parallels Klerman and Mahoney’s hypothesis that the history of British prop-
erty protection emanates not from the 13th century jury but from the 17th century legislature.
Their conjecture seems plausible, because that is when commercial interests asserted themselves
and came to dominate the British power structure. It also parallels Roe’s (2000, 2003, 2006) argu-
ment that 20th century politics could have overturned prior property protection, and did in some
nations. When those in power were not interested in supporting financial markets, financial mar-
kets did not develop. Nations’ legal traditions were less important than their contemporaneous
political economy features.
This is not just history. The process of legislative property protection is happening here
and now, in the United States. Consider the Kelo case, which the United States Supreme
Court decided in 2005. The court said that state legislatures were free to define what the
public purpose was when they took property from property owners for economic develop-
ment. (There is more detail here for a law school property course, but we need not go
into it.) This decision would not be a good one for a legal origin theory that sees funda-
mental importance in common law judicial property protection. But then the issue became a
public one, going on the ballot in eleven states, with nine of them confining their decision-
makers from expanding the notion of property that could be taken (Castle Coalition, 2006;
Cooper, 2006). Today it is the American property-oriented polity, not the judges, that restricts
takings.
3. Juries’ interaction with the bigger picture
There’s another interaction between the Glaeser–Shleifer article and the bigger picture of the
legal origin analysis—and it may well be more important. Let us pursue it here and see how
it could lead us to higher ground and better insights. That higher ground is the ascendancy of
political economy considerations in understanding the foundations for financial markets.
3.1. Political economy foundations in the 13th century
First, let us analyze the core legal origins perspective, step by step.
The central argument in this literature is that law that protects investors is important for fi-
nancial markets. (Few would dispute this in its ordinary form.) Law though is not primarily
the creation of modern political and economic forces, the legal origin theorists assert, but the
result (primarily, largely, in important measure) of longstanding legal traditions that date back
centuries. Figure 1 illustrates the view that modern property protection is rooted in medieval
institutions.
What caused the common and civil law legal systems to diverge? Well, political differences in
the 12th, 13th, and perhaps the 17th centuries, political differences having to do with the relative
power in England and France of the king and of the complementary relative power of the barons
in each nation. I illustrate with Fig. 2.
With these two sequences in mind, we can, in the legal origins theory, understand much of
modern finance.
3.2. Political economy foundations in the 20th century?
So in the legal origins theory, politics is indeed important, but its importance is in how it
induced institutional differences to arise in the 12th, 13th, and maybe the 17th centuries. Modern

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303
Fig. 1. From medieval legal origin to modern financial markets.
Fig. 2. From medieval political foundations to legal origins differences.

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Document Outline

• Juries and the political economy of legal origin
  • Introduction
  • The emergence of juries in the 13th century
    • Thirteenth century political differences between England and France
    • The Klerman-Mahoney reconsideration
  • The legal origin theory's bigger picture
    • What is the bigger picture?
    • How important for modern commerce?
    • Is the jury uniformly important in common law nations?
    • Rebuilding Glaeser and Shleifer's jury-decentralization view
  • Juries' interaction with the bigger picture
    • Political economy foundations in the 13th century
    • Political economy foundations in the 20th century?
    • Differences due to wars and insecurity
  • Conclusion
  • References

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