Union objectives and indexation externalities in a monopolistically competitive economy

This paper extends the literature on indexation externalities by analyzing equilibrium and efficient indexation in a unionized economy characterized by a monopolistically competitive goods market. The assumption that union objectives relate to both employment and the real wage implies that union indexation decisions are associated with a negative externality and, as a consequence, the equilibrium degree of indexation is inefficiently high. This feature is characteristic of both passive and activist policy environments.