I hit a perfect 45 in my May 2023 session while studying at an international school in Tokyo. Now I have offers from Cambridge HSPS, HKU, and HKUST. Selecting your HLs feels overwhelming when you want to keep every door open for university.
Economics requires a specific mix of logic and writing. Many students struggle with the Internal Assessment data collection process. Choosing the right supporting subjects makes that workload manageable. I wrote this guide to show you exactly which combinations work best for top-tier admissions.
Mathematics: The Non-Negotiable Core
This is the most critical subject. If you're serious about Economics, especially at competitive universities, you *must* take Math at Higher Level (HL). There are two options: Analysis and Approaches (AA) HL or Applications and Interpretation (AI) HL. For Economics, AA HL is almost universally preferred and, in many cases, required. Universities like LSE, Cambridge, and UCL explicitly state a preference or requirement for AA HL. This is because AA HL focuses heavily on calculus, algebra, and proof – the foundational mathematical tools for advanced economic theory.
I took AA HL, and it was instrumental. The jump from Standard Level (SL) to HL is significant, particularly in topics like integration, differential equations, and complex numbers, all of which reappear in university-level econometrics and mathematical economics. Without a strong AA HL foundation, you'll be playing catch-up in your first year, which is a position you absolutely want to avoid. If your school only offers AI HL, you need to check specific university requirements very carefully and consider self-studying AA HL topics or taking an additional qualification like A-Level Further Maths.
Economics HL: Highly Recommended, But Not Always Required
Taking Economics at HL is a great way to demonstrate genuine interest and gain an early understanding of core concepts like microeconomics, macroeconomics, and international economics. It certainly helped me frame my personal statements and prepare for interviews. However, it's crucial to understand that many top universities, particularly in the UK, do not *require* IB Economics. They often prefer a strong mathematical background over prior economic knowledge, as they prefer to teach their own specific economic theories from scratch.
That said, having Economics HL gives you a significant advantage in terms of vocabulary, conceptual frameworks, and essay writing skills relevant to the discipline. It makes the transition to university economics smoother. I found the IB Economics syllabus, particularly the extended essay component, excellent preparation for university-level research and critical analysis. If you enjoy the subject and perform well, it's a definite asset.
The Third HL: Strategic Choices Beyond Math and Economics
With Math AA HL being essential and Economics HL highly recommended, your third HL choice becomes strategic. Universities often look for subjects that demonstrate analytical thinking, strong writing, or further quantitative aptitude. Common excellent choices include History HL, Geography HL, a rigorous Science (Physics or Chemistry HL), or even another Language HL if you're truly strong.
I chose History HL because of its emphasis on critical thinking, source analysis, and structured argumentation – skills highly transferable to essays and research in Economics. A strong essay-based subject at HL proves you can formulate complex arguments and defend them. If you lean more quantitative, Physics HL could be a good choice, showcasing problem-solving abilities. Avoid 'easier' HLs that don't demonstrate academic rigor, as this can be a red flag for admissions committees.
Standard Level Subjects: Balancing Rigor and Breadth
Your SL subjects, while less weighted than HLs, still matter. They should complement your HL choices and demonstrate a well-rounded academic profile. My SL choices were English A Literature, Japanese B, and a science (Environmental Systems and Societies, ESS).
English A Literature SL is excellent for developing sophisticated analytical and communication skills, which are vital for any humanities or social science degree. A second language (like Japanese B SL for me) shows cultural awareness and an ability to learn diverse skill sets. For your sixth subject, a science at SL, even if not a 'hard' science, can demonstrate scientific literacy and an understanding of different methodologies. ESS, for example, combines elements of biology, geography, and economics, offering a unique interdisciplinary perspective.
Beyond Subjects: The Extended Essay and TOK
Don't underestimate the Extended Essay (EE) and Theory of Knowledge (TOK). Your EE is a fantastic opportunity to explore an economic topic in depth, showcasing your research skills and independent learning. I wrote my EE in Economics, focusing on the impact of a specific government policy on income inequality. This allowed me to demonstrate my passion for the subject and my ability to conduct university-level research.
A strong TOK essay and presentation also contribute to demonstrating critical thinking and an awareness of different ways of knowing – skills highly valued in academic environments. These components, while not directly 'subjects,' provide crucial evidence of intellectual curiosity and academic maturity that admissions officers look for, especially for competitive programs.
The US vs. UK vs. Hong Kong Nuance
While the core advice remains consistent, there are subtle differences. UK universities, especially Oxbridge and LSE, are highly prescriptive about Math HL (specifically AA HL) and often value a strong essay subject. They are less concerned if you haven't taken IB Economics, preferring to teach their own foundational theories.
US universities, particularly top-tier ones, look for breadth and a rigorous overall curriculum. While Math AA HL is still paramount, they might be more flexible on your third HL, appreciating a diverse range of challenging subjects. They also place a greater emphasis on extracurriculars and your personal narrative. Hong Kong universities like HKU and HKUST are generally aligned with the UK approach, with a strong emphasis on Math HL, but also appreciating Economics HL. Their programs can be quite quantitative, so a solid math foundation is key.
My Subject Combination (IB 45, Cambridge HSPS)
My final IB subject combination was: Mathematics AA HL, Economics HL, History HL; English A Literature SL, Japanese B SL, Environmental Systems and Societies (ESS) SL. This combination allowed me to demonstrate strong quantitative abilities, deep interest in economics and social sciences, and robust analytical and communication skills. The breadth provided by the languages and science also showed a well-rounded academic profile.
This combination directly supported my applications to Cambridge (HSPS, which has a significant economics component), HKU (Economics & Finance), and HKUST (Global Business). It allowed me to meet the stringent mathematical requirements while also showcasing my ability to engage with complex essay-based subjects. Reflecting on it, I wouldn't change a thing for my specific goals.
Frequently asked questions
Choosing your IB subjects for an Economics degree requires strategic thinking, with Mathematics Analysis and Approaches (AA) HL being the undisputed cornerstone. While Economics HL is highly beneficial, a strong third HL that demonstrates analytical rigor is also crucial. Focus on developing quantitative, analytical, and communication skills across your subjects, and leverage your Extended Essay and TOK to showcase intellectual curiosity. Tailor your choices to specific university requirements, particularly regarding Math HL, but always prioritize a challenging and coherent academic profile.