Revision summary
Waltz built neo-realism to make realism a systemic theory. Anarchy, like functions, and unlike capabilities are the core tenets. Bipolarity was his favoured stability case. Keohane and Nye’s interdependence is the liberal-institutionalist foil. Domestic politics is deliberately outside the 1979 model.
Model answer
Introduction
Neo-realism, or structural realism, emerged as Kenneth Waltz’s reply to classical realism and to the behavioural search for a theory of International Politics. Its tenets are anarchy, structure, and polarity, not human nature.
Body
Emergence
- Hans Morgenthau’s classical realism rested on interest as power and on a tragic human nature. Critics called it unfalsifiable philosophy.
- The 1970s debate with interdependence and with integration theory asked why war persisted among like units.
- Waltz’s Theory of International Politics (1979) shifted the cause from men and States to the system’s structure.
- The Cold War bipolar map was the empirical home of the argument: two poles, clear balancing, long peace at the centre.
Tenets
- Ordering principle is anarchy: no world government. Units are like in function; they differ in capability.
- Structure is the distribution of capabilities. Polarity — bipolar or multipolar — is the main variable.
- Self-help and security dilemma follow. Balancing is more typical than bandwagoning among great powers.
- Relative gains and survival constrain cooperation even when Robert Keohane’s regimes look useful.
- Theory is systemic. Domestic regime type is omitted by design, which later neoclassical realists put back.
What it displaced and what it left
- It disciplined IR into a parsimonious theory. It underplayed transnational actors that Keohane and Joseph Nye stressed.
- Offensive realists such as John Mearsheimer kept the structure and raised the appetite for power.
Flow diagram
flowchart TD C[Classical realism] --> W[Waltz 1979] W --> AN[Anarchy like units] W --> PO[Polarity capabilities] AN --> SH[Self-help balancing] PO --> SH
Conclusion
Neo-realism emerged when Waltz moved realism from human nature to anarchy and polarity. Its tenets are like units, self-help, and capability distribution as structure. It remains the spare map of great-power politics. It is not a full sociology of world politics.
Quick related
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