Legal Determinants of External Finance

Source: La Porta, R., Lopez-de-Silanes, F., Shleifer, A. & Vishny, R. W. (1997). Journal of Finance 52(3), 1131–1150 · DOI: 10.1111/j.1540-6261.1997.tb02727.x

TL;DR

The founding paper of the "law and finance" literature. Across 49 countries, those with weaker legal protection of outside investors — measured both by legal rules and by the quality of enforcement — have smaller and narrower capital markets, in both equity and debt. Protection varies systematically by legal origin: common-law (English) countries protect shareholders and creditors most and tend to have the most developed markets; French civil-law countries protect them least and have the least developed markets, with German and Scandinavian civil law in between. Law shapes finance.

The idea

The size and depth of a country's financial markets is not just a function of wealth or growth, but of the rules and enforcement that protect minority shareholders and creditors from expropriation by insiders. Better protection lets entrepreneurs raise external finance on better terms, so more firms access markets and securities carry higher valuations. The paper traces these protections to four legal origins — English (common law) versus French, German, and Scandinavian (civil law), most of which countries inherited via colonization or adoption of a former power's laws.

Evidence

A cross-sectional study of 49 countries relating capital-market development to investor-rights indices (an anti-director rights index for shareholders, a creditor rights index), a rule-of-law enforcement score, and legal origin, controlling for GDP growth and country size. Headline gaps by legal origin:

Outsider-held stock market cap / GNP (corrected for insider ownership): ~60% for common-law countries vs. ~21% for French civil-law (35% across all civil-law; 30% Scandinavian).

Listed domestic firms per million people: 35 (common law) vs. 10 (French), 17 (German), 27 (Scandinavian).

IPOs per million people (in the year examined): 2.2 (common law) vs. 0.2 (French), 0.12 (German), 2.1 (Scandinavian).

Aggregate debt / GNP: 68% (common law), 45% (French), 97% (German), 57% (Scandinavian) — debt finance is more accessible in English than French origin, but highest in the bank-focused German systems.

In regressions, higher rule of law and stronger anti-director rights both predict larger external-finance markets (e.g. raising rule of law from the sample average of 6.85 toward 10 raises outsider-held market cap by ~13% of GNP). The link between creditor rights and indebtedness is more tenuous than that between shareholder rights and equity-market size.

Why it matters

A foundational result connecting institutions to financial development, launching the law-and-finance and investor-protection literatures and shaping corporate-governance research (e.g. Gompers–Ishii–Metrick governance work) and emerging-market investing. It reframed "why are some capital markets bigger" as a question about legal rules and enforcement rather than wealth alone.

Caveats

Legal-origin classifications and rights indices are coarse and have been debated; later work questioned the robustness of some indices and the strength of the common-law advantage.

The study is cross-sectional and country-level; law and finance co-evolve, complicating causal interpretation (endogeneity).

The common-law edge is clearest for equity markets; debt patterns differ (German bank-based systems carry the highest debt/GNP).

Key references

La Porta, R., Lopez-de-Silanes, F., Shleifer, A. & Vishny, R. (1997) — Legal Determinants of External Finance — Journal of Finance

La Porta, R., Lopez-de-Silanes, F., Shleifer, A. & Vishny, R. (1998) — Law and Finance — Journal of Political Economy

Gompers, P., Ishii, J. & Metrick, A. (2003) — Corporate Governance and Equity Prices — Quarterly Journal of Economics

Provenance: verified/generated from the paper's full text.