The global economic architecture is currently predicated upon "Classical Trust," a historical construct codified through centuries of jurisprudential evolution, from the Lex Mercatoria to modern digital encryption standards; however, the imminent realization of the "Quantum Advantage" threatens to render these foundational security and legal frameworks obsolete. This research presents a longitudinal analysis of how fundamental shifts in computational power have historically reshaped economic law and operational management, utilizing Stochastic Economic Modeling to quantify the "Systemic Liability Gap" created by the transition from classical to quantum-resistant infrastructures. By integrating Quantum Game Theory with Institutional Economics, this paper evaluates how decentralized autonomous operations must adapt to a post-quantum reality characterized by a non-linear decay of legal certainty, as existing encryption-based contracts become vulnerable to retrospective decryption (the "Harvest Now, Decrypt Later" paradox). Our findings define the critical legal imperatives for "Quantum-Ready" operational governance, arguing that the survival of global supply chain integrity depends on a proactive, state-level synchronization of legal liability and quantum-resistant cryptographic protocols, ultimately providing a vital roadmap for management leaders to navigate the most significant structural disruption in the history of industrial operations.

Keywords

Quantum Economics, Jurisprudential Evolution, Stochastic Modeling, Post-Quantum, Cryptography (PQC), Operational Risk Management