Political theory is a framework that helps us analyze, interpret, and understand political phenomena.
It provides lenses through which we can view complex issues, offering explanations and predictions about how the world works.
Note
Political theories are not one-size fits all solutions.
They offer different perspectives, each with its own strengths and limitations.
Key Political Theories in Global Politics
Realism
Realism treats the international system as anarchic and sees states as self-interested actors that compete for power and security.
Case study
China’s Actions in the South China Sea
What happened:
China has built artificial islands, deployed military infrastructure, and asserted territorial claims over most of the South China Sea, despite overlapping claims from countries like Vietnam and the Philippines.
Structural realist analysis:
In an anarchic international system, China cannot rely on other states or international institutions to guarantee its security.
By militarizing the South China Sea, China is asserting control over vital trade routes and creating a buffer zone against potential U.S. or regional threats.
This pursuit of regional hegemony is a rational strategy to increase its security and influence, especially as the U.S. maintains a strong military presence in Asia.
Outcome:
China’s assertiveness leads to balancing behaviour from other states (e.g. U.S. freedom of navigation operations, AUKUS, Quad alliance), illustrating the security dilemma.
Liberalism
Liberalism holds that states and non-state actors can cooperate through institutions and norms, and that economic interdependence reduces the likelihood of conflict.
Case study
The EU as a Liberal Institution
Cooperation: Built to prevent war through economic and political integration.
Interdependence: Shared markets and currency reduce conflict.
Democracy & Rights: Promotes liberal values through membership rules and legal accountability.
Institutions: Uses law and negotiation to manage disputes, not force.
Soft Power: Spreads influence via trade, diplomacy, and aid, not military might.
Constructivism
Constructivism argues that state behaviour is shaped by socially constructed norms, ideas, and identities rather than by material factors alone, so change is possible as those norms evolve.
Case study
Syria and the Chemical Weapons Norm (2013)
In 2013, the Assad regime in Syria used chemical weapons (sarin gas) in Ghouta, killing over 1,000 civilians.
The attack sparked international outrage and threats of military intervention by the U.S. and its allies.
Constructivist Analysis:
The strong global reaction wasn’t just about the number of deaths (conventional weapons had already killed many more).
It was due to the violation of a deeply embedded international norm: the taboo against chemical weapons.
The pressure led Syria to join the Chemical Weapons Convention (CWC) and dismantle much of its stockpile, showing that norms and identities can constrain state behaviour.
Marxism
Marxism sees global politics as driven by economic structures and class struggle, with inequality sustained by the dominance of wealthy states and corporations.
Case study
COVID-19 Vaccine Inequality (2020–2022)
Context:
During the COVID-19 pandemic, wealthy countries like the U.S., UK, and EU members secured the vast majority of early vaccine supplies.
Meanwhile, many poorer countries in Africa, Latin America, and South Asia struggled to access doses, even for healthcare workers.
Marxist/Neo-Marxist Analysis:
Exposes global class divisions: rich nations (the "core") hoarded resources to protect their populations and economies, while the "periphery" was left vulnerable.
Pharmaceutical companies (like Pfizer and Moderna) made record profits, prioritising deals with the highest bidders over public health.
Patent protections blocked the Global South from producing its own vaccines, reinforcing dependency and capitalist control over life-saving resources.
Shows how global capitalism privileges profit and elite interests, even in times of global crisis.
Applying Theory to Political Issues
Identifying the Issue
Clearly define the political issue or event you are analyzing.
Example: Climate change, armed conflict, or economic inequality.
Selecting a Theoretical Lens
Choose a theory that best aligns with the key aspects of the issue.
Consider multiple theories to gain a comprehensive understanding.
Analyzing the Issue
Use the chosen theory to interpret the causes, dynamics, and potential solutions.
Highlight how the theory explains specific aspects of the issue.
Active recall
Choose a recent global event (e.g., a trade dispute or humanitarian crisis).
Apply two different theories to analyze the event.
Compare how each theory offers unique insights or explanations.
Developing Your Analytical Skills
Critical Thinking
Question assumptions and consider alternative explanations.
Evaluate the strengths and limitations of each theory.
Contextual Awareness
Consider the historical, cultural, and economic context of the issue.
Recognize how different theories may apply in different settings.
Evidence-Based Analysis
Support your analysis with specific examples and evidence.
Use case studies to illustrate how theories apply to real-world situations.
Exam technique
Paper 1 (Source-Based, 1h15m, 25 marks)
For Q1 (3m), identify how the source applies a theoretical concept to explain a real political issue.
For Q2 (4m), explain how the source uses theory to interpret events - show the link between abstract concepts and concrete evidence.
For Q3 (6m), compare how sources apply different theories to the same issue - note what each explains well and what it overlooks.
For Q4 (12m), evaluate the usefulness of theoretical analysis for understanding real political issues, using sources AND your own applied examples.
Paper 2 (Extended Essay, 1h45m, 30 marks)
Section A: Show precise theory application - name the theory, state its prediction, then test it against evidence.
Section B: Apply theory across themes to show explanatory power - does realism explain development outcomes as well as conflict?
Top band (13-15) requires critical evaluation of theories - where do they succeed, where do they fail, and why?
Paper 3 - HL Only (Stimulus-Based, 1h30m, 28 marks)
For Q1 (3m), analyse which theoretical lens best explains the political dynamics in the stimulus.
For Q2b (6m), recommend theory-informed action while acknowledging the limitations of that theoretical framework.
For Q3 (15m), synthesize case studies by applying contrasting theories to show the value and limits of each perspective.
Active recall
How would a realist and a liberal interpret the causes of armed conflict differently, and what solutions might each propose?
In what ways could constructivism provide unique insights into global cooperation on climate change compared to realism or liberalism?
How might a Marxist analysis of global economic inequality differ from a liberal institutionalist perspective?
Why is theoretical pluralism important when analyzing complex issues like terrorism or migration, and what risks arise if only one theory is applied?
When applying political theory to a case study (e.g., the Russia–Ukraine conflict), what steps should you take to ensure your analysis is both critical and contextually aware?
