Microeconomics 1e (Medeiros, 2024) – LibreTexts (CC-BY-NC-SA)ECON 201 / By Amy Liao / December 5, 2025
Principles of Microeconomics 3e (Greenlaw and Shapiro, 2022) (OpenStax) (CC BY 2.0)ECON 201 / By Amy Liao / June 29, 2025 Principles of Microeconomics (OpenStax) – LibreTexts (CC BY-NC-SA 3.0)
The Economy 2.0: Microeconomics (Bowles et al., 2023) – CORE Econ (CC BY-NC-ND)ECON 201 / By Amy Liao / December 4, 2024 License is CC BY‑NC‑ND but text is listed as open access.
Allocation, Distribution, and Policy: Notes, Problems, and Solutions in Microeconomics (Bowles and Chen, 2025) (CC BY-NC)ECON 201 / By Amy Liao / December 5, 2023 This text is for a more advance principles course.
