How to Structure a World Studies (Interdisciplinary) Extended Essay

Doing a World Studies EE across two subjects? Why weaving them into one argument beats separate sections, and a story-driven way to structure the flow.

23 June 2026 · 5 min read

World Studies EEs sound great until you sit down to structure one. Say you are combining Business Management and Global Politics. Do you write a Global Politics section and then a separate Business section, or do you weave them together? Almost everyone overthinks this.

Use one subject as home, the other to analyse

IB suggests treating one subject as the home base and using the other as the analytical lens. So you are not building a "Global Politics half" and a "Business half" bolted together. One subject sets up the situation, the other does the analysis.

Write it like a story, not two sections

The cleanest way to structure it is to write it as a story that walks through your process, and let one subject flow into the other. For example: tension in the Middle East escalates (global politics), a country closes a key shipping strait (a politically powerful move with huge market effects), and then you ask how that hits local businesses. The main pressure for businesses doing international trade is the exchange rate, so you analyse a firm's revenue before and after using a quantitative business tool, then look at its inventory turnover. Two subjects, but they flow into one another and it reads as one argument.

Why this scores better

Examiners want a clear line of argument, and the whole point of an interdisciplinary EE is genuine integration. Two stapled-together sections read like two mini-essays. A woven argument shows you actually used both lenses to answer one question.

Key Takeaways

  • Pick one subject as the home base and use the other to analyse
  • Do not split the essay into a separate section per subject
  • Structure it as a story that flows from situation to analysis
  • A single woven argument scores better than two stitched-together halves

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32/34 IB Extended Essay · The Extended Essay Academy

Frequently asked questions

Should I separate the two subjects in a World Studies EE?

No. Treat one subject as the home base and use the other to analyse. Weave them into a single line of argument rather than writing a separate section for each, which reads like two essays stapled together.

How does an interdisciplinary (World Studies) EE work?

You investigate one issue through two DP subjects that genuinely need each other. One acts as the home base, the other provides the analytical lens, and the marks come from integrating them into one argument.

Which subject should be the home subject in a World Studies EE?

Usually the one that frames the issue and carries most of your sources. The second subject then supplies the specific analytical tools (for example, business or economic methods applied to a political situation).

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