The paper presents the summary of the special issue of JMMD 'Ethnolinguistic vitality'. The volume shows convincingly that ethnolinguistic vitality perceptions as measured by standard methodology such as the Subjective Ethnolinguistic Vitality Questionnaires (SEVQ) are not reliable indicators of actual vitality. Evidence that ethnolinguistic behaviour is more affected by social structural factors and by members' motivations than by their subjective vitality perceptions is summarised. Based on these findings, it is proposed that ethnolinguistic vitality, i.e. the group's ability to behave as an active collective entity, depends on the emotional attachment of its members to this collective identity. This suggests that when high vitality is achieved by affective involvement, the rational arguments for being aligned to one or the other group measured by SEVQ lose their force. From this it follows that groups have two prototypical modes of operation, 'hot' and 'cold', or a scale of modes between these extremes; and that ethnolinguistic vitality is achieved at least to some extent by different means in different modes. An overview of factors affecting ethnolinguistic vitality modes is presented.
Reflective summaryThe complexity of language maintenance issues has provoked an immense volume of research over the last half a century. This special issue has added another set of papers to this research. In this context, it is inevitable that the question arises as to what the unique contribution of this particular collection is, what its unique message is that has not been stated before in some form or another. A straightforward answer is that this special issue proposes a set of related arguments about the theory of ethnolinguistic vitality. Although all of the contributions in this issue are critical to the established version of the vitality theory, particularly to the concept of subjective vitality, the collection does not aim to refute the theory, but to take a step forward and refine its principles.Four of the papers in this volume have used Subjective Ethnolinguistic Vitality Questionnaires (SEVQ) as part of their empirical research. The sociolinguistic settings studied were diverse: Yagmur reports comparative data on Turkish minorities in Australia, France, Germany and the Netherlands; Ehala and Zabrodskaja have studied the Russian-speaking community in Estonia, McEnteeAtalianis the Greek community in Istanbul, and Moring et al. the German community in North Italy, the Hungarian community in Romania and the Swedish *