Norms & Identity in IR — Explain norms and identity in international politics

For much of the twentieth century, the dominant frameworks in International Relations—realism and neoliberal institutionalism—treated states as rational, self-interested actors operating within the constraints of material power and institutional incentives. These paradigms explained a great deal about interstate conflict, alliance formation, and trade cooperation, but they left a conspicuous gap: they could not easily account for why states sometimes adopt costly policies that align with moral principles rather than immediate strategic gain. The abolition of the slave trade, the taboo against chemical weapons use, and the global diffusion of human rights treaties all posed puzzles that purely materialist theories struggled to resolve.

By the late 1980s and early 1990s, a wave of scholarship began to challenge the rationalist orthodoxy by foregrounding the role of norms—shared expectations about appropriate behavior—and identity—the socially constructed sense of who actors are and what roles they occupy. This intellectual movement, broadly labeled constructivism, argued that the international system is not merely a distribution of capabilities but also a distribution of ideas, and that these ideas fundamentally constitute the interests states pursue. The end of the Cold War—an event that rationalist theories largely failed to predict—served as a powerful catalyst for this constructivist turn, demonstrating that ideational change could reshape the very structure of global politics.

The central question that the norms-and-identity research program addresses is deceptively simple: Why do states sometimes act against their apparent material interests, and how do collective understandings shape what those interests are in the first place? Answering this question requires moving beyond the assumption that interests are fixed and exogenous, and instead treating them as products of ongoing social construction—an intellectual shift with profound implications for how we understand war, peace, cooperation, and global governance.

Understanding norms and identity in IR requires grasping several foundational concepts that together constitute the constructivist research program. These concepts are analytically distinct but deeply interrelated: norms define standards of behavior, identities define who actors understand themselves to be, and both are produced and reproduced through social interaction. Unlike the fixed preferences assumed by rationalist models, constructivists argue that actors' interests are endogenous to their social environment—that is, interests emerge from the normative and identity structures in which actors are embedded.

One of the most influential frameworks for understanding how norms emerge and spread in international politics is the norm life cycle developed by Finnemore and Sikkink (1998). This model describes three sequential stages through which a new norm moves from a contested idea championed by a few actors to a taken-for-granted standard that states internalize as part of their identity. The diagram below illustrates these stages, the key actors involved at each phase, and the mechanisms that drive normative change forward.

As the diagram illustrates, the transition between stages is neither automatic nor inevitable. Many norms stall at Stage 1, failing to attract sufficient state support to reach the tipping point—consider the ongoing contestation surrounding the proposed norm of a 'responsibility to protect' (R2P), which has gained rhetorical acceptance but faces significant resistance in practice. The cascade phase, by contrast, can be remarkably swift once it begins: the norm against landmines, for example, moved from marginal advocacy to the Ottawa Treaty (1997) in less than a decade, as a cascade of state endorsements made non-participation increasingly costly to a state's international reputation and identity as a 'good international citizen.'

While the norms-and-identity approach in IR is not primarily a mathematical or formal enterprise, it does rely on a set of clearly specified causal mechanisms that explain how ideational factors translate into observable state behavior. Understanding these mechanisms is essential for moving beyond the claim that 'ideas matter' to a rigorous account of how and when they matter.

Mechanism 1: Socialization

Socialization refers to the process by which actors internalize the norms, values, and identities of a social group. In the international context, states are socialized through participation in international organizations, diplomatic networks, and multilateral processes. The mechanism operates through three sub-processes: social influence (the desire for status and approval), persuasion (changing beliefs through argumentation), and mimicry (copying the behavior of successful or prestigious peers). Alastair Iain Johnston's work on China's integration into international arms control regimes demonstrates how sustained participation in multilateral forums gradually shifted Chinese officials' understanding of security away from purely realpolitik calculations.

Mechanism 2: Constitutive Effects

Whereas socialization changes behavior by changing beliefs, constitutive effects are more fundamental: they define what kinds of actors exist and what actions are even conceivable. The norm of sovereignty, for example, does not merely regulate state behavior—it constitutes the state as a political entity with exclusive authority over a defined territory. Similarly, the identity of 'European Union member state' carries constitutive weight: it shapes not only what policies a state pursues but what kind of state it understands itself to be. This is the constructivist argument that structure is not just constraining but also enabling—it makes possible certain identities, interests, and actions that would not otherwise exist.

Mechanism 3: Strategic Social Construction

Not all normative change occurs through gradual socialization. Norm entrepreneurs often act strategically, deploying framing techniques to redefine issues in morally resonant terms. Keck and Sikkink's 'boomerang model' shows how domestic activists bypass repressive governments by appealing to transnational advocacy networks, which then pressure the target state from above. This process—strategic social construction—highlights that actors can intentionally manipulate normative structures, blending rationalist and constructivist insights.

Not all norms operate in the same way, and appreciating the diversity of norm types is crucial for applying constructivist analysis to empirical cases. Scholars have developed several classification schemes that help organize the normative landscape of international politics, each capturing a different dimension of how norms function.

Wendt's Three Cultures of Anarchy

Alexander Wendt's framework provides one of the most elegant demonstrations of how identity shapes the meaning of anarchy. Wendt argues that anarchy can produce three distinct 'cultures' depending on the dominant role identity that states assume toward one another. In a Hobbesian culture, states view each other as enemies and treat threats as existential—war is the dominant mode of interaction. In a Lockean culture, states see each other as rivals who compete but recognize each other's right to exist—war is limited and sovereignty is respected. In a Kantian culture, states regard each other as friends who resolve disputes peacefully and support each other against threats—the 'democratic peace' zone of Western Europe approximates this culture. The crucial point is that the same material condition—anarchy—produces radically different outcomes depending on the shared identities and norms that prevail.

The campaign to ban antipersonnel landmines provides a paradigmatic case study for applying the norm life cycle framework. By tracing the trajectory from activist advocacy in the early 1990s to the Ottawa Treaty of 1997, we can observe each stage of norm emergence, cascade, and internalization in action.

Like any theoretical framework, the constructivist emphasis on norms and identity carries distinctive analytical strengths alongside significant limitations. A responsible engagement with this approach requires understanding both what it illuminates and what it obscures, particularly in comparison to rationalist alternatives.

The foundational constructivist scholarship on norms and identity—associated primarily with Wendt, Finnemore, and Sikkink—is sometimes called conventional constructivism because it operates within a broadly positivist epistemology, seeking to identify causal mechanisms and test propositions empirically. However, the constructivist tent is broad, and more recent scholarship has pushed the research program in directions that challenge some of the foundational framework's assumptions.

One of the most productive recent developments is the concept of norm contestation—the recognition that norms are rarely settled and unambiguous but are constantly subject to reinterpretation, challenge, and localization. Amitav Acharya's concept of norm subsidiarity highlights how local actors in the Global South do not simply accept or reject global norms but actively reshape them to fit local contexts—a process he calls constitutive localization. This challenges the implicit diffusion model in the original norm life cycle, which tended to assume that norms flow from a Western 'center' to a passive 'periphery.' These advanced debates connect constructivism to broader questions in postcolonial IR theory, critical security studies, and the sociology of knowledge.