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Legal Origins and Modern Stock Markets

Mark J. Roe

Harvard Law School

December 2006

Harvard Law Review, Vol. 120, pp. 460-527, 2006
Harvard Law and Economics Discussion Paper No. 563

Legal origin - civil vs. common law - is said in much modern economic work to determine the strength of financial markets and the structure of corporate ownership, even in the world''s richer nations. The main means are thought to lie in how investor protection and property protection connect to civil and common law legal origin. But, I show here, although stockholder protection, property rights, and their supporting legal institutions are quite important, legal origin is not their foundation.

Modern politics is an alternative explanation for divergent ownership structures and the differing depths of securities markets in the world''s richer nations. Some legislatures respect property and stock markets, instructing their regulators to promote financial markets; some do not. Brute facts of the twentieth century - the total devastation of many key nations, wrecking many of their prior institutions - predict modern postwar financial markets'' strength well and tie closely to postwar divergences in politics and policies in the world''s richest nations. Nearly every core civil law nation suffered military invasion and occupation in the twentieth century - the kinds of systemic shocks that destroy even strong institutions - while no core common law nation collapsed under that kind of catastrophe. The interests and ideologies that thereafter dominated in the world''s richest nations and those nations'' basic economic tasks (such as postwar reconstruction for many) varied over the last half century, and these differences in politics and tasks made one collection of the world''s richer nations amenable to stock markets and another indifferent or antagonistic. These political economy ideas are better positioned than legal origin concepts to explain the differing importance of financial markets in the wealthy West.

Number of Pages in PDF File: 68

Keywords: public choice, finance, equity markets, legal origin, civil law, common law

JEL Classification: D21, G30, G34, L21, K4, K22

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Date posted: June 16, 2006 ; Last revised: January 16, 2011

Suggested Citation

Roe, Mark J., Legal Origins and Modern Stock Markets (December 2006). Harvard Law Review, Vol. 120, pp. 460-527, 2006; Harvard Law and Economics Discussion Paper No. 563. Available at SSRN: http://ssrn.com/abstract=908972

Contact Information

Mark J. Roe (Contact Author)
Harvard Law School ( email )
Griswold 502
Cambridge, MA 02138
United States
617-495-8099 (Phone)
617-495-4299 (Fax)
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