International Economics Olympiad (IEO): Guide

Q: What is the IEO (International Economics Olympiad)?
A: The IEO (International Economics Olympiad) is an annual international competition covering Economics, Financial Literacy, and a team Business Case for upper-secondary students. Each country sends up to 5 contestants. Students don't register directly - participation is through a national qualifier. See ieo-official.org for current rules and host details.

TL;DR
The International Economics Olympiad (IEO) is an annual competition in economics, financial literacy, and a team business case for upper-secondary and pre-university students, selected and registered by each country’s national organiser.
Teams can include up to five contestants and one or two team leaders, with eligibility rules set in the official regulations (for example, age is measured relative to 30 June of the Olympiad year).
Medal thresholds and any special awards are set and announced by the jury after scripts are marked; always rely on the current year’s regulations and host communications.

Status: The official IEO 2026 host-year site and results page were checked on 25 August 2026. The ninth IEO ran from 12 to 20 July 2026, and the official site now publishes the 2026 individual and team results. The general three-part structure remains Economics, Finance, and a team Business Case.

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Registration quick answer (Singapore): Students don’t apply directly to IEO. Countries send national teams selected via a local competition; check the official IEO site for the current structure and contact links: https://ieo-official.org/

1 What exactly is the IEO?

• Global scope. The IEO has run annually since its launch in 2018, with host details published on official host-year sites.