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Law and Finance

Why this mattered

Law and Finance helped turn legal institutions into a central explanatory variable in comparative finance. Before it, differences in corporate ownership, capital-market depth, and investor participation were often treated mainly as outcomes of economics, politics, or firm-level contracting. La Porta, López-de-Silanes, Shleifer, and Vishny made a sharper claim: the legal rules protecting shareholders and creditors, their legal origins, and the quality of enforcement systematically shaped whether outside investors could safely provide capital. By coding investor protections across 49 countries, the paper made cross-country institutional comparison empirical rather than impressionistic.

The paradigm shift was methodological as well as substantive. The paper showed that legal origin could be used as a broad, historically rooted source of variation in investor protection, with common-law systems generally offering stronger protections and French civil-law systems weaker ones. This framework made it newly possible to connect corporate governance, ownership concentration, securities markets, and financial development within a single comparative research program. Its finding that weaker investor protection was associated with more concentrated ownership gave a concrete mechanism: where minority investors were poorly protected, control remained in large blockholders’ hands because dispersed outside ownership was less viable.

The paper became a foundation for the “law and finance” literature and for later work on institutions and development. Subsequent research extended, challenged, and refined its claims by examining securities regulation, enforcement, political origins of legal rules, creditor rights, judicial quality, and the limits of legal-origin explanations. Even where later studies questioned causal interpretation or emphasized politics and enforcement over formal legal families, they did so against the agenda this paper set: explaining financial systems through measurable institutional protections rather than treating legal structure as background detail.

Abstract

This paper examines legal rules covering protection of corporate shareholders and creditors, the origin of these rules, and the quality of their enforcement in 49 countries. The results show that common‐law countries generally have the strongest, and frenchcivillaw countries the weakest, legal protections of investors, with German‐and scandinavin‐civil‐law countries located in the middle. We also find that concentration of ownership of shares in the largest public companies is negativelyrelated to investor protections, consistent with the hypothesis that small, diversified share‐holders are unlikely to be important in countries that fail to protect their rights.

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