David Owens

An invalid promise is one whose breach does not wrong the promisee. I describe two different accounts of why duress and deception invalidate promises. According to the fault account duress and deception invalidate a promise just when it was wrong for the promisee to induce the promisor to promise in that way. According to the injury account, duress and deception invalidate a promise just when by inducing the promise in that way the promisee wrongs the promisor. I demonstrate that the injury account is superior. I then argue that in this respect promising is like any exercise of a normative power. I conclude by distinguishing two theories of promissory obligation, a widely held view which I call the information interest theory and an alternative which I call the authority interest theory. I argue that the points established earlier support the authority interest theory over its rival.

It is widely held that one who sincerely promises to do something must at least intend to do that thing: a promise communicates the intention to perform. In this paper, I argue that a promise need only communicate the intention to undertake an obligation to perform. I consider examples of sincere promisors who have no intention of performing. I argue that this fits well with what we want to say about other performatives - giving, commanding etc. Furthermore, it supports a theory of promissory obligation which I have advocated elsewhere - the authority interest theory - against the orthodox information interest theory.

This paper addresses two questions. First can a binding promise conflict with other binding promises and thereby generate conflicting obligations? Second can binding promises conflict with other non-promissory obligations, so that we are obliged to keep so-called ‘wicked promises’? The answer to both questions is ‘yes’. The discussion examines both ‘natural right’ and ‘social practice’ approaches to promissory obligation and I conclude that neither can explain why we should be unable to make binding promises that conflict with our prior obligations. There is also consideration of the parallel case of ‘wicked commands’.