Orthodox economics has long treated defense from threats foreign and domestic as a public good requiring provision by a central nation-state. Yet both theory and history show how polycentric defense systems, with dispersed groups of people searching for context-specific solutions, have provided collective security.

This article will be posted in full nine months after its initial print publication. To read it now, please buy this issue in print or ebook form from our store, in our iOS or Kindle Fire app, or on various platforms via Magzter.