A note on seniority and political competition

Seniority conveys political power to legislators despite the fact that all legislators have equally valuable voting power. What prevents a coalition of junior members from exercising their political power to form a coalition and claim an equal share of the power by eliminating the benefits of seniority? Several models explain how valuable services are supplied by senior members, so the returns to seniority may be looked at as compensation for their services. This still does not explain why the providers of those services should be chosen based on seniority rather than on some other criterion.Seniority is used because it provides benefits to every member of the legislature. Legislators want to be reelected, and regardless of the seniority level of an individual in the legislature, the incumbent will always have more seniority when running for reelection than the challenger. Since voters benefit from being represented by more senior representatives, the seniority system enhances the reelection chances of even the most junior representative.