System effects and the constitution

Adrian Vermeule

"Abstract: A system effect arises when the properties of an aggregate differ from the properties of its members, taken one by one. The failure to recognize system effects leads to fallacies of division and composition, in which the analyst mistakenly assumes that what is true of the aggregate must also be true of the members, or that what is true of the members must also be true of the aggregate. Examples are (1) the fallacious assumption that if the overall constitutional order is to be democratic, each of its component institutions must be democratic, taken one by one; (2) the fallacious assumption that if judges are politically biased, courts will issue politically biased rulings. In these cases and many others I will discuss, system effects are an indispensable analytic tool for legal theory. A systemic approach implies that the choices of legal actors are strategically...