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NotesGlobal PoliticsTopic 1.2
Unit 1 · Core · Understanding power and global politics · Topic 1.2

IB Global Politics — Systems and interactions

Topic 1.2 of IB Global Politics covers Systems and interactions, which is part of Unit 1: Core · Understanding power and global politics. Students explore key concepts including Political systems, Political structures, Political dynamics, and more. A strong understanding of systems and interactions is essential for IB Global Politics exams and builds the foundation for connected topics across the syllabus.

Exam technique guidePractice questions

Key concepts in Systems and interactions

Key Idea: Actors don't act in a vacuum — they act inside systems. This topic is about political systems (democracy → authoritarian), the structures of power in the world (unipolar/bipolar/multipolar), the dynamics (cooperation ↔ conflict), and the rules, norms and institutions that shape how actors behave.

📚 The micros at a glance

Systems, structures, dynamics, rules

  1. 1.2.1 Political systems — Democracy (power shared & checked) → hybrid → authoritarian (power concentrated).
  2. 1.2.2 Political structures — How power is spread in the world: unipolar (one power), bipolar (two), multipolar (several).
  3. 1.2.3 Political dynamics — Relationships shift both ways over time: cooperation ↔ competition ↔ conflict.
  4. 1.2.4–1.2.6 Rules & institutions — Legal frameworks, political norms (how expectations spread) and institutions that shape and constrain behaviour.

⚖️ The debates that come up

  • Unipolar / bipolar / multipolar
  • Each has risks
  • Judge: stability is contested

  • Relationships shift both ways
  • Neither is permanent
  • Judge: dynamics change over time

  • Norms & institutions shape behaviour
  • But the strong can break them
  • Judge: rules matter but unevenly
IB-style questionExplain[4 marks]

With reference to a source and one example you have studied, explain the difference between a unipolar and a multipolar system.

Model answer plan

See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.

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Important: Treating systems, structures and dynamics as fixed. Examiners reward students who show political relationships <strong>shift over time</strong> (cooperation ↔ conflict), and who use the right term — polarity (structures), systems (democracy→authoritarian), norms and institutions (the rules).
Answer in your head first, then tap to reveal.

What is a political system? The way a state organises power — from democracy (power shared and checked), through hybrid regimes, to authoritarian (power concentrated with few checks).

What is polarity? How power is spread among states: unipolar (one dominant power), bipolar (two), or multipolar (several great powers balancing one another).

What are political dynamics? The way relationships between actors shift over time — from cooperation to competition to conflict and back — nothing is permanent.

What are norms and institutions? Norms are shared expectations of how actors should behave; institutions are the rules and bodies that shape and constrain behaviour — they matter, but the powerful can break them.

Why do systems matter for actors? Because actors act inside systems — the structure, dynamics and rules shape what each actor can do and how much power it really has.

Exam tips

  • Systems (democracy→authoritarian) ≠ structures (polarity) ≠ dynamics.
  • Relationships shift both ways over time.
  • Norms and institutions shape — but don't always bind — the powerful.
  • Use the right term for the right idea.

What you'll learn in Topic 1.2

  • 1.2.1 Political systems
  • 1.2.2 Political structures
  • 1.2.3 Political dynamics
  • 1.2.4 Legal frameworks
  • 1.2.5 Political norms
  • 1.2.6 Political institutions
Suggested study order: Read the notes for each sub-topic below → test yourself with flashcards → attempt practice questions → review exam technique.

Study resources — 1.2 Systems and interactions

1.2.1

Political systems

Notes
1.2.2

Political structures

Notes
1.2.3

Political dynamics

Notes
1.2.4

Legal frameworks

Notes
1.2.5

Political norms

Notes
1.2.6

Political institutions

Notes

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Topic 1.2 Systems and interactions forms a core part of Unit 1: Core · Understanding power and global politics in IB Global Politics. Mastering these concepts will strengthen your understanding of connected topics across the syllabus and prepare you for exam questions that require analysis, evaluation, and real-world application.

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