This is fairly topical point. Yet in terms of maximizing stability, it seems like those democracies that do -not- vest too much executive power in a single per

This is fairly topical point. Yet in terms of maximizing stability, it seems like those democracies that do -not- vest too much executive power in a single person tend to fair better. Many presidential systems which adhere to strict notions of unitary executive theory are finding themselves at the mercy of unaccountable and uncontrollable leaders, while parliamentary and semi-presidential systems which better distribute executive authority and retain close accountability to democratic feedback mechanisms fair better.