Making liberal use of Kant? Democratic peace theory and Perpetual Peace

The work of Immanuel Kant has been foundational in modern democratic peace theory. His essay Toward Perpetual Peace gives three prescriptions for attaining peace between democracies: republican institutions, a pacific union between states, and an ethos of universal hospitality. Contemporary democratic peace theory, however, has warped the Kantian framework from which it draws inspiration: the third prescription has been gradually substituted for commerce and trade. I argue that this change in emphasis produces tensions between Perpetual Peace and the body of democratic peace theory literature it spawned. Moreover, I contend that a look back at Kant’s essay sheds light on why this transformation occurred. Finally, I use this new look back at Perpetual Peace to reformulate the relationship between peace, democracy, and commerce so as to offer a new perspective on the democratic peace theory/capitalist peace theory debate