Recognizing that tort law is a unique area of law that was judicially created by rational human beings with an innate sense of economic justice, this Note seeks to apply positive economic theory—derived from ex post analyses of tort cases—to an ex ante analysis to predict how and to what extent the existing and proposed aerial trespass rules will further economic efficiency in the context of drones and airspace rights. Part I will provide (1) an overview of the Federal Aviation Administration’s (FAA) current regulatory framework and the development of the common law aerial trespass doctrine and (2) an overview of the debate surrounding landowners’ property rights and drones by discussing the ULC’s proposed per se aerial trespass rule and th...