The central mission of cognitive science is to reveal the real nature of the mind, however familiar or foreign that nature may be to naive preconceptions. The existence of naive conceptions is also important, however. Prescientific thought and language contain concepts of the mental, and these concepts deserve attention from cognitive science. Just as scientific psychology studies folk physics (McCloskey 1983, Hayes 1985), viz., the common understanding (or misunderstanding) of physical phenomena, so it must study folk psychology, the common understanding (...) of mental states. This subfield of scientific psychology is what I mean by the phrase 'the psychology of folk psychology'. (shrink)

This paper considers the question ‘How should institutions enable people to meet their needs in situations where there is no guarantee that all needs can be met?’ After considering and rejecting several simple principles for meeting needs, it suggests a new effectiveness principle that 1) gives greater weight to the needs of the less well off and 2) gives weight to enabling a greater number of people to meet their needs. The effectiveness principle has some advantage over the main competitors (...) including a principle suggested by David Miller in Principles of Social Justice. Miller argues that his principle accounts for the existing data on individuals’ intuitions about meeting needs. The effectiveness principle better accounts for this data. Furthermore, this paper presents a new experiment on intuitions about meeting need that is consistent with the effectiveness principle but not Miller’s principle. (shrink)

This note suggests that the exercise of measuring poverty in a society is greatly aided by clarity on precisely what one means by “the extent of poverty”. The latter concept may refer to the extent of poverty normalized for population size, or to the extent of poverty not so normalized. Absence of clarity on this distinction – which is both simple and non-trivial – could lead to rather straightforward problems of coherence and consistency in the measurement of poverty.