Precisely defining aggression under the NAP

Posted by Madphilosopher3@reddit | Libertarian | View on Reddit | 4 comments

Proponents of the non-aggression principle are often rightly criticized for presuming a theory of property when determining who the aggressor is in conflicts over scarce resources. It is therefore incumbent upon us to provide a precise definition of aggression, one capable of logically deducing a property theory consistent with the principle’s underlying intention: peaceful coexistence on terms others can accept.

Upon close examination, aggression can be more accurately defined as the provocation of conflict through the involuntary imposition of costs on another agent. This reframing captures the essence of coercion: it is not merely the use of force, but any act that externalizes costs onto others without their consent. Defined in this way, the NAP does not rely on a preexisting property framework, it generates one.

From this understanding, the labor theory of property naturally emerges as the most coherent and morally consistent account of ownership. When an individual mixes their labor with unowned natural resources (through time, effort, and capital) they incur costs to produce value that did not exist before. To appropriate the fruits of that labor without consent is to shift those costs back onto the producer, depriving them of the value their efforts created and thus provoking conflict. In contrast, recognizing their right to exclusive use of that product preserves peaceful relations by internalizing costs and benefits to those who created them.

This understanding aligns property rights with the very purpose of the non-aggression principle: to prevent the provocation of conflict by ensuring that no one is forced to bear costs they did not choose. It also grounds property in an observable and universal criterion (productive contribution) rather than arbitrary claims of possession or power.

Edit: This post expands on a recent article I wrote which develops the NAP from a Rule-Preference Utilitarian foundation.