Political structures (Global Politics HL)

The big idea: A political structure is the framework power runs through. The most important one in global politics is the structure of the international system — which has no world government, only states.

Inside a country, power is organised by structures like the branches of government and a constitution. But between countries there is no ruler above the states — and that shapes everything.

• Anarchy — there is no world government above states, so each state looks out for itself.
• Polarity — how power is spread among the great powers: unipolar (one), bipolar (two) or multipolar (several).

Anarchy ≠ chaos: In global politics, anarchy does not mean chaos — it means there is no boss above the states. Order still exists, but it rests on the states themselves, not on a world government.

The structure of the international system is not fixed — its polarity shifts over time. The last few decades show a clear change.

Case study — from unipolar to multipolar: After the Cold War ended (around 1991), the world was briefly unipolar: the United States was the single dominant power. Since then, the rise of China and others has pushed the world toward a more multipolar structure, with several major powers.

The structure shapes how states behave. In a bipolar Cold War, two blocs faced off; in a multipolar world, power is shared and alliances shift more.

The key point: The polarity of the system shapes how states act — how many great powers there are, and how they balance each other. A shift from unipolar toward multipolar changes the whole game of global politics.

So how much does structure — anarchy and polarity — really explain in global politics? Weigh both sides.

Link it up: Structure is the realist lens: anarchy + polarity drive competition. But liberals stress institutions and cooperation, and constructivists stress ideas. A strong answer weighs structure against these.

How political structures come up in Paper 1: A Paper 1 source might show how power is arranged in a state. Look at the structure: who holds power, and how it is divided and checked.

Easy marks to lose: 1. Thinking 'anarchy' means chaos. It means no world government, not disorder.



2. Only using structure. Institutions and ideas matter too.



3. No real example. Use the unipolar→multipolar shift.



4. Muddling the polarity terms. Uni = 1, bi = 2, multi = several.