Parties value unity, yet, members of parliament face competing demands, giving them incentives to deviate from the party line. For members of the European Parliament (MEPs), these competing demands are national party and European party group pressures. Here, we look at how MEPs respond to those...

Parliamentary institutions and partisan norms are complex, and new members of parliament are unlikely to possess an innate awareness of optimal behavior. This paper examines how new legislators adopt the behavioral patterns of incumbent members in the 6th European Parliament. The 6th EP provides...