This article compares two models of discharge for repudiation. The first – termed the “mirror image model” – has come to the fore only in recent years. It treats the applicable principles as the mirror image of those that govern discharge for failure to perform a contractual term. Under the second model – the “differentiated model” – repudiation is analysed in terms of various criteria that respond to conceptual diversity within the basis for discharge. The two models diverge, at the heart of the repudiation doctrine, when the issue is whether a reasonable person would regard the promisor as having refused to perform the contract. It is argued that the differentiated model is the better model, and also the preferred view of the common law.

This article critiques the model for implementation of good faith suggested by Leggatt J’s obiter comments in Yam Seng Pte Ltd v International Trade Corp Ltd. He considered that a general term of good faith may be implied as a matter of construction or as a factual implication under traditional implied terms rules; and that further terms might be implied as specific manifestations of the general term. These further terms would reflect “shared values and norms of behaviour”, including the “core value of honesty”. The article contends that the reasoning to support the general implication contradicts the proposition — accepted by Leggatt J — that good faith has not been recognised “as a duty implied by law”; and that, for several reasons, the analysis used to support implication on the basis of shared norms is flawed.

Having set express termination clauses (ETCs) in their legal context, this article's first aim is briefly to explain three significant points concerning their operation which have now been clarified. Other important questions remain unresolved, and the second aim is to explore four of them: the judicial “reading down” of ETCs; whether termination need be immediate; the recoverability of expectation damages; and the avoidance of an unintended repudiation. Respects in which the English law of contract on each of them would benefit from development or change are identified, and it is argued that the Canadian approach to the award of expectation damages following termination pursuant to an ETC is preferable to the established Anglo-Australian position.