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How can a sovereign state be held legally accountable when no world government exists to enforce the rules? That question has driven the subfield of state responsibility for centuries. The law of state responsibility—the set of secondary rules determining when a state commits an internationally wrongful act and what consequences follow—was given its most authoritative expression in the 2001 Articles on Responsibility of States for Internationally Wrongful Acts (ILC Articles), drafted by the International Law Commission. But the ILC Articles, deeply shaped by legal positivism, are not the end of the story. They are the target of multiple critiques and the starting point for alternative frameworks that dispute positivism's core assumptions about consent, attribution, and reparation.
Early thinkers like Grotius and Vattel grounded state responsibility in universal moral principles. A state that caused harm to another was obliged to make reparation because natural justice required it—no superior sovereign was needed. Attribution centered on fault and the state's moral agency. This framework provided a powerful rationale but left the content of obligations vague and vulnerable to conflicting interpretations as state practice diversified.
Legal positivism shifted the basis from moral reason to state consent. Responsibility arose only from the breach of a treaty or customary rule that the state had voluntarily accepted. The ILC Articles later codified this approach: attribution of conduct to the state through organs or agents, breach of an international obligation in force for that state, and an obligation to make full reparation. Positivism narrowed the subjects of responsibility to states alone, excluded non-state actors and systemic harms, and treated the rules as objective once consented to. Its state-centrism and consent-based logic became the dominant framework for most of the nineteenth and twentieth centuries.
International legal process challenged positivism's static view of rules. Instead of focusing on the content of substantive obligations, it emphasized procedures—diplomacy, negotiation, adjudication—through which responsibility was claimed and contested. This framework treated state responsibility as a dynamic process of claim and response rather than a fixed code. It coexisted with positivism but narrowed attention to how secondary rules were actually operationalized in dispute settlement.
Constructivist approaches rejected the positivist claim that responsibility norms are simply given by state consent. Drawing on international relations theory, constructivists argued that norms are socially constructed through interaction, identity, and repeated practice. For example, the due diligence standard for state responsibility for private actor violence evolved through shared expectations, not just treaty language. Constructivism showed how attribution and obligation categories change as states internalize new understandings of harm and accountability. It remains a leading lens for explaining normative change beyond formal consent.
Four frameworks emerged around 1990, each targeting a different weakness in the positivist consensus while sharing a skeptical orientation toward its neutrality.
Feminist scholars exposed how positivism's public/private distinction shielded states from responsibility for gender-based violence committed by private actors. They argued that attribution rules, by focusing on state organs, ignored systemic patterns of domestic violence and sexual harm. Feminist frameworks reframed state responsibility as encompassing a due diligence obligation to prevent and punish private violence—a change partially reflected in later jurisprudence but still contested.
TWAIL scholars like Anghie and Chimni demonstrated that positivism's doctrines emerged from and served colonial interests. The very structure of state responsibility—focusing on injuries between sovereign states, with rules on attribution that exclude historical wrongs—perpetuated Eurocentrism. TWAIL insists on confronting colonial legacies, including calls for reparations and structural reform of responsibility rules.
Global legal pluralism rejected positivism's assumption of a single, unified legal order. State responsibility, in this view, operates alongside multiple overlapping normative systems (trade law, human rights, investment, criminal law). Attribution and breach may differ across regimes, and responsibility can extend to non-state actors and transnational networks. Pluralism coexists with positivism but extends the field's boundaries.
Law and economics scholars applied efficiency analysis to state responsibility. They questioned the positivist commitment to full reparation, arguing from deterrence theory that optimal remedies should balance harm against the cost of prevention. This framework offered an alternative metric for reparation, one based on incentives rather than corrective justice. Although niche, it persists as a critical voice in debates on remedies.
Two contemporary frameworks build on the 1990s critiques but propose different architectures for holding actors accountable.
Global administrative law (GAL) extends accountability concepts to international institutions and global regulatory bodies (e.g., WTO, WHO). Rather than creating a substantive normative hierarchy, GAL focuses on procedural mechanisms—transparency, reason-giving, review—to ensure that global governance actors meet standards of responsibility. It complements pluralism by offering a procedural toolkit.
International legal constitutionalism argues for a vertical hierarchy of norms, with jus cogens and erga omnes obligations overriding state consent. This framework revives natural law's universalism but in a modern form: certain fundamental values (prohibition of genocide, torture) create obligations that bind all states, regardless of consent. Constitutionalism directly challenges positivism's horizontal, consent-based structure.
Today, leading frameworks—constructivism, feminist approaches, TWAIL, GAL, and constitutionalism—converge on the importance of the ILC Articles as a baseline doctrinal reference. All accept that reparation is a core principle, though they disagree on its scope. The sharpest disagreements involve the source of obligation: positivism insists on consent, while constructivism and constitutionalism locate obligation in social practice or fundamental values. They also differ on who bears responsibility: positivism and constitutionalism remain largely state-centric, while pluralism and TWAIL press for broader inclusion of non-state actors and historical wrongs. Feminist frameworks challenge the gender neutrality of attribution rules. Law and economics offers an efficiency critique that cuts across these debates, questioning whether the field's justice emphasis overlooks optimal deterrence. No single framework has displaced the others; instead, the subfield operates as a pluralist conversation, with each lens illuminating what others miss.