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Liberal Institutionalism
Why Cooperation Persists Where Power Politics Predicts Defection
A puzzle runs through the history of space governance. The Outer Space Treaty was negotiated in the middle of a cold war between two adversaries each building anti-satellite capabilities. The rules it produced — no national appropriation of celestial bodies, no weapons of mass destruction in orbit, state responsibility for national activities including private ones — have held for more than half a century, through multiple changes in the balance of power, the entry of dozens of new space actors, and the commercialization of activities the original signatories did not imagine. A realist reading of 1967, extrapolated forward, would have predicted the treaty’s obsolescence within a generation. It did not become obsolete. It became the background institutional condition against which everything that followed had to argue.
The stubbornness of this cooperation is the analytical puzzle liberal institutionalism was developed to explain. Rules persist under pressure. Transparency once built does not easily unbuild. Focal points, once established, shape expectations even when the actors who established them have lost interest. The tradition asks why — and the answer, built into a structured method, gives the analyst a distinct reading of cooperation that neither realism nor constructivism supplies.
Kant to Keohane to Ikenberry
The intellectual lineage begins with Immanuel Kant’s 1795 essay Perpetual Peace, which proposed that republican constitutions, commercial interdependence, and a confederation of states could produce conditions under which war becomes irrational for rational actors. Kant was writing about a world without international institutions; his argument was about the logic that would create them. The argument went into hibernation during the nineteenth and early twentieth centuries, revived briefly in the interwar idealism of the League of Nations, and was effectively discredited by the Second World War.
The modern tradition begins with Robert Keohane and Joseph Nye’s 1977 Power and Interdependence and Keohane’s 1984 After Hegemony. Writing against the realist orthodoxy that cooperation required a hegemon willing to supply public goods, Keohane argued that institutions could outlive the hegemonic conditions that created them. Once built, they lowered the transaction costs of cooperation, provided information that reduced the uncertainty that fuels defection, and created issue-linkages that allowed states to trade across bargaining spaces. Cooperation could persist, Keohane argued, because the institutions that produced it had independent causal force — they did not merely reflect power; they modified it.
G. John Ikenberry extended the argument in the 1990s and 2000s, most influentially in After Victory in 2001, which asked why powerful states voluntarily bind themselves to institutions whose rules limit their freedom of action. His answer reframed institutions as strategic instruments for locking in advantageous orders at moments of power surplus, in exchange for longer-term predictability when power erodes. The argument gave the tradition an account of institutional creation that its earlier form had lacked.
The literature since has refined rather than displaced these foundations. Martha Finnemore, Kathryn Sikkink, and the norms-cascade literature of the 1990s added the dynamics of how norms move from emergence through cascade to internalization. Kal Raustiala and David Victor’s 2004 regime-complex framework addressed the increasingly common situation in which multiple overlapping institutions govern the same issue area, and the strategic behaviour of actors choosing among them. None of these corrections unwound the core claim. Institutions matter. They can be designed, they can fail, and they modify the incentives under which states decide whether to cooperate.
The tradition’s theoretical reach is wide; its method’s job is to apply the reach disciplinedly to a specific case.
What the Method Actually Does
The characteristic move is not identifying institutions — that is not hard — but diagnosing whether cooperation in a given issue area is feasible under given institutional conditions, and if so why. The method begins by classifying the strategic structure of the cooperation problem itself. Not every cooperation question has the same shape.
| Problem type | Core structure | Institutional feature required |
|---|---|---|
| Coordination game | Multiple stable equilibria; the only problem is selecting one | Focal points, standard-setting |
| Collaboration dilemma | Each actor has a unilateral incentive to defect | Enforcement and monitoring |
| Assurance problem | Actors willing to cooperate conditional on others doing so | Confidence-building mechanisms |
| Suasion game | Interests are asymmetric | Compensation architectures |
Collapsing these types into generic “cooperation” is the most common analytical failure, and the method refuses it.
Once the structure is classified, the method assesses institutional demand along Keohane’s three functional axes. Does the issue area suffer from high transaction costs that an institution could reduce? From information gaps that monitoring and reporting could close? From single-issue bargaining that issue-linkage could expand? A case of genuinely high demand on all three axes implies that institution-building will produce durable benefits; a case of low demand implies that the institutional shell will be an empty formality regardless of how well it is designed.
Supply-side analysis follows. Is there a willing leader — hegemon or entrepreneur — prepared to absorb the start-up costs of institutional creation? Are the participating actors few enough and their interests symmetric enough that bargaining is feasible? Is the distribution of gains such that no major actor is systematically disadvantaged, or must compensation mechanisms be designed? Is the shadow of the future long enough that repeated-game discipline can substitute for formal enforcement?
The method then turns to regime health. Is the cooperative arrangement forming, stable, eroding, or in crisis? Who complies, who defects, and what role do reputation and reciprocity play? Are there norm entrepreneurs actively promoting the cooperative order, veto players blocking it, or free riders exploiting it? Forum competition — Raustiala and Victor’s regime-complex dynamic — adds a layer: when multiple overlapping institutions govern the same issue area, actors engage in venue-selection as a strategic move, and the institutional landscape can strengthen governance through experimentation or weaken it through fragmentation.
Finally the method tests its own limits. Where does institutional logic break down? Under what conditions would a major actor’s defection collapse the cooperative equilibrium? This honest self-testing is what separates rigorous liberal institutionalism from the institutional optimism the tradition has sometimes been accused of, and it is the condition under which the method earns its place alongside realism and constructivism rather than as an alternative to them.
The Method at Work
Consider a generic case: two coalitions competing for adherents among emerging space nations on the governance of lunar activity. One coalition is organized around a multilateral framework built on consensus procedures and broad membership. The other is organized around a bundle of bilateral agreements sharing a common template but negotiated and enforced one country at a time.
The cooperation problem, when the method classifies it, is a collaboration dilemma with elements of coordination. All parties benefit from coordinated lunar resource use; each has incentives to establish unilateral claims, which returns the problem to the collaboration form. Coordination elements appear in technical protocols — communication frequencies, safety zones, interoperability — where multiple equilibria exist and the binding constraint is selection, not defection.
Functional demand reads high for information provision — operators need to know who is active where — and for issue-linkage, which would tie lunar access to broader technology cooperation and trade arrangements. Transaction-cost reduction is moderate: the underlying bargaining is expensive but not prohibitive.
On the supply side the two coalitions differ. The multilateral framework enjoys broader legitimacy; its consensus procedures, however, produce slow and sometimes paralytic decision-making. The bilateral coalition offers faster commitment but has weaker compliance architecture — bilateral enforcement is politically difficult and each bilateral tie must be renegotiated under pressure.
The method’s analytical move is not to predict which coalition wins; the inputs are not that clean, and a prediction of that form would reach past what the method can deliver. The move is to identify the institutional conditions under which each form can sustain cooperation — and where each would fail. The multilateral form sustains cooperation when there is enough diplomatic patience to accommodate its consensus procedures and enough legitimacy demand to make its slow outputs valuable; it fails under time pressure or when a major actor decides the veto architecture is no longer acceptable. The bilateral form sustains cooperation when a single leading actor is willing to bear the recurring cost of renegotiation and the aggregate pattern converges on de facto rules; it fails when that actor’s commitment wanes or when defection by one bilateral partner is not met with meaningful response.
The non-obvious insight is that the two coalitions are not actually competing for the same cooperative outcome. The multilateral form can produce stable legitimacy at low operational clarity; the bilateral form can produce stable operational clarity at low legitimacy. A strategist who treats them as substitutes has misread the problem. A strategist who asks which combination of the two can stabilize both legitimacy and operation — and which actors would need to participate in both — has used the method correctly.
Where It Shines, Where It Zoppica
The method is at its best when the issue area genuinely admits of institutional resolution and when the analyst disciplines the analysis with problem-type classification rather than generic “cooperation helps” claims. It produces readings that realist power analysis cannot produce — in particular, an account of why cooperation persists through power shifts that the realist framework predicts should have ended it — and readings that constructivist analysis complements rather than substitutes for.
Its weaknesses are well-known to the tradition’s own practitioners. Institutions can be captured by dominant powers and serve hegemony rather than genuine cooperation; the theory has difficulty distinguishing the two, and cross-checking against realist power analysis is an analytic requirement, not an optional pairing. The framework tends toward institutional optimism and may underestimate cases in which power politics override institutional constraints. It is weak on explaining institutional creation absent a willing hegemon or entrepreneur — a limitation especially relevant in space, where institutional leadership has been intermittent for decades. Rapid institutional collapse, when a major power defects, is not well accounted for by a theory built on the logic of persistence. And the growing prevalence of soft-law instruments in space — non-binding accords, memoranda of understanding, voluntary guidelines — resists tools designed for binding regimes; compliance criteria must be adapted explicitly when the method is applied to these settings.
Complementary methods sharpen the weaknesses. Realist power analysis provides the structural backdrop against which institutional cooperation operates; a liberal-institutionalist analysis that concludes “cooperation will hold” without testing against power-based defection incentives has not been completed. IAD (Institutional Analysis and Development) supplies the ground-level institutional mechanics this method’s theoretical claims rest on — the two are explicitly complementary, the one explaining why cooperation is possible, the other explaining how rules shape behaviour within a given institution. Institutional Design Analysis asks whether the institutions this method identifies as cooperation vehicles are actually fit for purpose. Constructivist Analysis traces how norm emergence and contestation shape the institutional environment this method takes as given.