Advanced Microeconomic Theory- An Intuitive Approach With Examples -mit Press-.pdf [exclusive] -

Kael explained how, in past famines, villagers used reciprocity —not prices. He told a story of how a gift of fish today created a debt of coconuts tomorrow, enforced not by contracts but by shame and gratitude.

The subtitle "With Examples" is well-earned. This is arguably the book's strongest asset. Kael explained how, in past famines, villagers used