Working as a team: Do legislators coordinate their geographic representation efforts in party-centred environments?

Why do legislators engage in geographic representation in party-centred electoral systems, where they face weak re-election incentives to cultivate a personal vote? Existing research offers cross-pressuring incentive structures and intrinsic localism motivations as individual-level factors to explain this puzzle. In this article, we propose an alternative argument based on the principle of collective action within party-internal structures of labour division. We argue that legislators elected in the same multi-member district and under the same party label (party delegations) share collective vote-seeking incentives to collaborate with each other in order to strike a balance between the collective benefits and individual costs of constituency-oriented activities. Results from a comparative study of written parliamentary questions in Germany and Spain support our argument. Specifically, the study suggests that individual localism attributes interact with the team composition of party delegations to shape constituency-orientated behaviour.