How might constitution-makers write “transformative constitutions”? Scholars and policymakers have looked to constitutional design as a mechanism for societal change, for example, promoting democracy, equality, and social rights. In these efforts, accountability has most often been limited to government actors. Yet, constitution-makers are increasingly introducing the “horizontal” application of rights, a potent tool for transformation whereby private actors also gain constitutional rights obligations. We argue that a key predictive element in introducing this mechanism is a meeting of the minds in constitution-making processes, where interests and mutual commitments from a broad cross-section of society are expressed at the negotiating table. We test our theory, employing cross-national data concerning the adoption of horizontal application over time, and examples from specific countries’ experiences. Our findings support our theory, suggesting that powerful articulation of interests by expert professionals in inclusive processes is a significant factor in reshaping citizen duties and, thus, transforming society.

This article interrogates the normative coherence of the label of ‘digital constitutionalism’. In particular, I argue that the use of the label ‘constitutionalism’ in digital contexts often conflates the practical realities of existing contractual governance models with the superficial appeal of constitutional structures. As a result, the label is misleading in both normative and qualitative terms as it obscures the true nature of the governance architectures to which it is applied, which are more appropriately understood as implementing a distinct genre of ‘private policy’.