Revision summary
Easton treated politics as authoritative allocation inside a system of inputs, conversion, outputs, and feedback. Almond restated conversion as interest and rule functions plus political culture. The method compared new states by function, not by legal text alone. Critics charge equilibrium bias and neglect of class, ideology, and silent power. It remains a map of process, not a theory of justice.
Model answer
Introduction
The systems approach treats politics as a set of interrelated parts that convert demands into binding decisions. It was the behavioural answer to legal-institutional description of offices alone.
Body
The model
- David Easton defined politics as the authoritative allocation of values for a society.
- Inputs are demands and support. The political system converts them. Outputs are decisions and policies. Feedback returns as new inputs.
- The environment is extra-political: economy, culture, and international pressure.
- Gabriel Almond added conversion functions: interest articulation, aggregation, rule-making, rule application, and rule adjudication, with political culture as the subjective weather of the system.
- Karl Deutsch stressed communication and steering. David Apter used systems language for modernisation.
Use and limit
- The approach compared regimes by function, not only by written constitutions, which helped the study of new states after decolonisation.
- Critics said it was conservative: equilibrium and persistence look like the good, and conflict and class look like noise.
- Marxist writers and later Foucault said allocation hides who is silenced before a demand is even voiced, which Steven Lukes called the third face of power.
- Easton’s later post-behavioural turn admitted relevance and values, which the first systems sketch had postponed.
Flow diagram
flowchart TD ENV[Environment] --> IN[Demands and support] IN --> SYS[Political system Easton] SYS --> OUT[Authoritative outputs] OUT --> FB[Feedback] FB --> IN
Conclusion
The systems approach maps politics as input, conversion, output, and feedback. Easton and Almond made it the teaching kit of comparative politics. It describes persistence better than it explains domination.
Quick related
Students also ask
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Cultural Relativism.
Next question in the 2022 paper (Q1). View answer →
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Is the systems approach the same as structural-functionalism?
They overlap. Almond’s functions are structural-functional. Easton’s system is more about boundary, persistence, and feedback.
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Can it study revolution?
Only as overload or conversion failure. It is weaker than Marx or Skocpol on why a system breaks.
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