I consider how asymmetric information between the party selectorate and members of Parliament affects the renomination of incumbent candidates. By applying an adverse-selection model I argue that the selectorate looks to past performance to select candidates it expects will gain influence. However, the impact of performance varies according to the need for and availability of information. The European Parliament (EP) provides a most-likely case for information asymmetry. Studying three elections in 11 member states, I find that the allocation of influential positions in office improves chances of reselection. The effect increases when the allocation is more selective, and when the prior uncertainty around candidacies is high. The Moreover, the greater the variation in the candidates' ability, the greater the prior uncertainty around candidacies. This again, increases the effect of performance, as the selectorate needs more information. I test this implication by identifying categories of MEPs whose ability to influence is particularly uncertain.The following study is based on the allocation of safe seats to incumbent members in 11 member-states of the European Union across three elections. The analysis is based on original data on the list placement of 1134 incumbent MEPs, their political background, as well as their effort and performance in office. Results show that