How Voters Respond to Presidential Assaults on Checks and Balances: Evidence from a Survey Experiment in Turkey

Why do voters support executive aggrandizement? One possible answer is that they do so because they think this will ease their preferred leader’s hand in putting their partisan vision into action, provided that the leader will continue winning elections. We study this phenomenon through a survey experiment in Turkey, by manipulating voters’ perceptions about the potential results of the first presidential election after a constitutional referendum of executive aggrandizement. We find that voters from both sides display what we call “elastic support” for executive aggrandizement; that is, they change previously revealed constitutional preferences in response to varying winning chances. This elasticity increases not only when citizens feel greater social distance to perceived political “others” (i.e., affective polarization) but also when voters are concerned about economic management in a potential post-incumbent era. Our findings contribute to the literature on how polarization and economic anxiety contribute to executive aggrandizement and democratic backsliding. 1

Modeling the Dynamics of a Gyroscopic Rigid Rotor with Linear and Nonlinear Damping and Nonlinear Stiffness of the Elastic Support

This study analytically and numerically modeled the dynamics of a gyroscopic rigid rotor with linear and nonlinear cubic damping and nonlinear cubic stiffness of an elastic support. It has been shown that (i) joint linear and nonlinear cubic damping significantly suppresses the vibration amplitude (including the maximum) in the resonant velocity region and beyond it, and (ii) joint linear and nonlinear cubic damping more effectively affects the boundaries of the bistability region by its narrowing than linear damping. A methodology is proposed for determining and identifying the coefficients of nonlinear stiffness, linear damping, and nonlinear cubic damping of the support material, where jump-like effects are eliminated. Damping also affects the stability of motion; if linear damping shifts the left boundary of the instability region towards large amplitudes and speeds of rotation of the shaft, then nonlinear cubic damping can completely eliminate it. The varying amplitude (VAM) method is used to determine the nature of the system response, supplemented with the concept of “slow” time, which allows us to investigate and analyze the effect of nonlinear cubic damping and nonlinear rigidity of cubic order on the frequency response at a nonstationary resonant transition.