Despite more than two decades of research on semi-presidential regimes, we still know very little about the actual coordination between the president and the prime minister. Through an in-depth analysis of Lithuanian semi-presidentialism, this paper underscores the importance of institutional design on intra-executive balance of power. It argues that absent of written rules or otherwise strong norms guiding intra-executive coordination, presidents enjoy more discretion in designing their own modes of operation. Coordination depends on the initiative of the president, with ad hoc practices further weakening the position of the prime minister. While Lithuanian semi-presidentialism has functioned by and large smoothly, the personality-centred politics commonly found in Central and East European countries creates favourable conditions for presidential activism.
