Table of Contents

International Law

The 30-Second Summary

What is International Law? A Plain English Definition

Imagine you're planning a long road trip across multiple countries. Before you go, you’d want to know the rules of the road for each place. Is driving on the left or the right? What are the speed limits? Are your driver's license and insurance valid? Without this knowledge, your trip could end in disaster. In the world of investing, International Law is the “rules of the road” for companies that operate globally. It isn't a single, global rulebook enforced by a world police force. Instead, it's a messy but essential patchwork of:

For an investor, this complex system boils down to two key areas: 1. Public International Law: This governs the relationships between countries. It's the big-picture stuff that makes headlines: trade wars, tariffs, economic sanctions, and international environmental regulations. If the U.S. imposes a tariff on Chinese-made goods, that's public international law in action, and it has a direct impact on the profits of a company like Apple, which assembles iPhones in China. 2. Private International Law (or “Conflict of Laws”): This deals with the nitty-gritty of cross-border business. If a French company signs a contract with a Brazilian supplier and the supplier fails to deliver, which country's courts have the right to hear the case? Which country's law applies? Strong, clear private international law creates a predictable environment where contracts are honored and disputes can be resolved fairly. Its absence creates chaos and risk. In short, international law is the invisible framework that determines whether a multinational company operates on a smooth, predictable highway or a treacherous dirt road full of potholes and pirates.

“The key to investing is not assessing how much an industry is going to affect society, or how much it will grow, but rather determining the competitive advantage of any given company and, above all, the durability of that advantage.” - Warren Buffett 1)

Why It Matters to a Value Investor

A value investor seeks to buy wonderful businesses at fair prices. The “wonderful” part isn't just about high profit margins today; it's about the predictability and durability of those profits for decades to come. International law is one of the most powerful forces affecting that durability, often in ways that are invisible on a standard financial statement.

How to Apply It in Practice

You don't need a law degree to apply these concepts. You just need to be a skeptical business analyst and know where to look. The goal is to perform a “jurisdictional stress test” on the company.

The Method

Here is a three-step process for analyzing a company's exposure to international law risk: 1. Map the Business's Geographic DNA: The first and most important step is to understand where the company actually does business. Don't just look at where it's headquartered. Dig into its annual report (Form 10-K for U.S. companies). Look for sections on “Geographic Segments” or “Risk Factors.”

2. Assess Jurisdictional Quality: Once you have your map, you need to assess the quality of the “rules of the road” in each key country. You are looking for stability, predictability, and fairness. Ask these questions for each significant country on the company's map:

You can find data to help answer these questions from sources like the World Bank's Business Enabling Environment reports and Transparency International's Corruption Perceptions Index. 3. Identify Key Legal Frameworks: Finally, zoom out and look at the big-picture legal issues that could impact the company's entire industry.

Interpreting the Result

The result of this analysis isn't a single number, but a qualitative judgment. You are categorizing the company's international legal risk profile.

A Practical Example

Let's compare two hypothetical companies to see this in action.

Comparative Analysis: Jurisdictional Risk
Metric Global Pharma Inc. Exotic Minerals Corp.
Business Develops and sells patented medicines worldwide. Operates a single, large copper mine.
Revenue Sources 40% USA, 35% European Union, 15% Japan, 10% Other. 100% of copper is sold on the global market (to China, EU, US).
Key Asset Location Research labs in USA and Germany; manufacturing in Ireland and Singapore. The entire copper mine is located in the fictional, politically unstable “Republic of Uncertania”.
Key Legal Factor Depends on strong international patent protection (WTO TRIPS agreement). Depends entirely on its 50-year mining contract with the government of Uncertania.
Risk Analysis Low. Operates in stable jurisdictions with strong rule of law. Its key asset (intellectual property) is protected by robust international treaties. EXTREMELY HIGH. The new government of Uncertania could tear up the contract, impose a 90% tax, or simply nationalize the mine. The company has zero diversification and is completely at the mercy of a single, unreliable legal system.
Investor Takeaway The business's intrinsic value is relatively stable and predictable. The required margin of safety can be moderate. The stock might trade at a P/E of 2, making it look “cheap.” But it is a potential value trap. A value investor would need an enormous discount to its “best-case scenario” value to even consider it, to compensate for the very real risk of total loss.

This example shows that while both are “international” companies, their risk profiles, as determined by their interaction with international law, are night and day.

Advantages and Limitations

Strengths

Weaknesses & Common Pitfalls

1)
International law is a primary determinant of the durability of a global company's competitive advantage.