Economics

• Prof. Felix Muñoz-Garcia’s materials on Microeconomic Theory and Game Theory. His teaching resources are really helpful to navigate through first-year courses on Microeconomics.
• Prof. Bruce Hansen’s website. Contains solutions to some of his Econometrics textbook’s problems.
• Francois Gourio’s teaching notes. Lecture notes on Macroeconomic Theory.

Euclidean Geometry Materials

In previous years, I wrote up some handouts on Euclidean Geometry problem-solving strategies to help aspiring mathletes. Their most recent versions, written in Spanish, can be found here.

Introductory

• Cuadriláteros cíclicos
• Puntos notables del triángulo

Intermediate

• Concurrencia y colinealidad. Teoremas selectos
• Homotecia en circunferencias
• Conjugados isogonales y simedianas
• Semejanza espiral

Advanced

• Elementos de geometría proyectiva para olimpiadas
• Incírculos mixtilíneos
• Inversión y reflexión

Do not hesitate to notify me any typo or inaccuracy you may find along the way.

For those interested in additional training resources and comfortably read explanations and proofs in English, I recommend the following authors and sites:

• Yufei Zhao’s training handouts
• Alexander Remorov’s notes
• Evan Chen’s articles
• David Altizio’s problems and materials
• Canadian IMO Training site
• Leo’s blog (Great posts about linear algebra, geometry and much more.)