Contracting Under Pressure: A Theory of Duress

Citation

Smith, S. A. (1997). Contracting under pressure: A theory of duress. The Cambridge Law Journal, 56(2), 343–373. Cambridge University Press. https://doi.org/10.1017/S0008197300081368

Chapter Summary

This is a journal article of about thirty pages, not a book, so there are no chapters to follow. It was published in the July 1997 issue of The Cambridge Law Journal and belongs to the scholarly literature on the theory of contract law. The sections below follow the questions that the article's abstract says it addresses.

The Problem: Agreements Made Under Pressure

The article starts from the observation that, in certain circumstances, the fact that an agreement was made under pressure is enough to invalidate what would otherwise be a good contract. English textbooks deal with these rules under the headings of duress and, to a lesser extent, undue influence and unconscionability. The author treats the existence of the rule as uncontroversial: few would argue that a contract made at gunpoint should be enforced, and the law is clear that such agreements are not enforceable.

What Is Less Clear: Principle and Scope

The questions the article takes up are what principle or principles underlie these decisions and what the proper scope, or reach, of those principles should be. This is the sense of the title's "theory of duress": the article is concerned less with listing the cases than with explaining why pressure sometimes invalidates a contract and how far that explanation extends.

Why the Question Matters for Theory

The abstract gives two reasons for the inquiry. The first is theoretical. Contract law, in the orthodox understanding, holds out freedom as a core value, so any adequate account of the subject must explain the part of the law in which individual freedom is most directly at issue. Duress is that part.

Why the Question Matters in Practice

The second reason is practical. English courts over the previous twenty-five years had accepted that the defence of duress can be invoked beyond threats to a person or to goods, which is the acceptance of "economic duress". Combined with the recent near-elimination of the rule that a promise to perform an existing duty is not good consideration, this means courts are regularly required to consider how far duress should extend.

Key Concepts

Concepts Named in the Abstract

Duress: the doctrine under which an agreement made under pressure can be invalidated.
Economic duress: the acceptance by English courts that pressure other than threats to the person or to goods can found the defence.
Undue influence and unconscionability: related headings under which textbooks treat other kinds of invalidating pressure.
Freedom as a core value of contract: the orthodox premise that any account of duress must be able to explain.
Existing-duty rule: the rule that a promise to perform an existing duty is not good consideration, whose recent near-elimination increases the practical weight of duress.

Critical Analysis

Strengths

A clear framing question. The abstract identifies a precise gap: the rule that pressure can invalidate a contract is settled, but the underlying principle and scope are not. This gives the article a defined target.
Theory tied to practice. The author connects the theoretical question about freedom in contract to a concrete doctrinal development, the recognition of economic duress alongside the weakened consideration rule, so the discussion has practical stakes.
Compact length. At thirty-one pages the article can be read in one sitting and is easier to place in a seminar than a book-length theory of contract.

Limitations

Date. The article was published in 1997 and discusses the English law of that time. Later decisions on economic duress and on the consideration rule are not covered, so it needs to be read with current case law.
Specialist register. It is a scholarly article that assumes familiarity with the English law of contract; a first-time contract student will find it difficult without a textbook beside it.
One author's account. It presents a single theory of duress, and readers should compare it with other accounts before treating it as settled.

Where It Fits in the Course

In the contract law course, this article is supplementary reading on one doctrine, not a core textbook. The general textbooks set it in context. Poole's Textbook on Contract Law treats vitiating factors in the ordinary run of an English contract course. Chen-Wishart's Contract Law pairs doctrinal analysis with discussion of the values and policy choices behind the rules, which is the closest match to the article's concerns. Contract Law Directions is a plain-prose introductory text, and Burrows's A Casebook on Contract collects the authorities themselves. Anson's Law of Contract is the detailed treatise to consult for the full case law.

A sensible order is to learn the doctrine of duress and economic duress from one of the textbooks, read the cases it cites, and then read the article to see how a theorist tries to explain them.

How to Use This Book

This is for students in a contract law course who have reached vitiating factors and want a theoretical account, and for those writing an essay on duress, economic duress or the foundations of contract.

A practical plan:

Prepare first. Read the textbook chapter on duress and economic duress, and note the leading cases.
Read with a question. Keep the abstract's two questions in mind: what principle explains invalidity, and how far should it extend?
Test the theory. Apply the article's explanation to cases of economic pressure and decide whether it fits them.
Check currency. Because the article dates from 1997, update any conclusions against recent cases and the latest edition of a textbook.
Compare accounts. Set it beside a textbook discussion or another theoretical treatment to see where explanations differ.