CONTENTS

                              Preface

                              Introduction: What Is Rationality?

PART I: ON ANGER AND COMMITMENT

    CHAPTER 1:    What Is the Point of Getting Annoyed? Emotions as a Mechanism for Creating Commitments

    CHAPTER 2:    Why We Love Those Who Are Cruel to Us: Stockholm Syndrome and the Story of the Nazi Schoolteacher

    CHAPTER 3:    Emotional Impostors, Empathy, and Uncle Ezra’s Poker Face

    CHAPTER 4:    Game Theory, Emotions, and the Golden Rule of Ethics

    CHAPTER 5:    The Prisoner’s Dilemma in Repeated Interactions: Do Drawn Knives Increase Cooperation in the World?

    CHAPTER 6:    On Decency, Insult, and Revenge: Why Don’t Suckers Suffer from Disgust?

PART II: ON TRUST AND GENEROSITY

    CHAPTER 7:    On Stigmas and Games of Trust: Why Did the Bees Commit Suicide?

    CHAPTER 8:    Self-Fulfilling Mistrust

    CHAPTER 9:    Cultural Differences, Palestinian Generosity, and Ruth’s Mysterious Disappearance

    CHAPTER 10:  Collective Emotions and Uncle Walter’s Trauma

    CHAPTER 11:  The Handicap Principle, the Ten Commandments, and Other Mechanisms for Ensuring Collective Survival

    CHAPTER 12:  Knowing How to Give, Knowing How to Receive: The Full Half of the Cholent

PART III: ON LOVE AND SEXUALITY

    CHAPTER 13:  The Spray That Will Give Us Love: On the Hormone that Creates Trust and Neutralizes Suspicion

    CHAPTER 14:  On Men, Women, and Evolution: Testing the Myths

    CHAPTER 15:  Make Me a Match Made in Heaven: Reproduction and the Mathematics of Romance

    CHAPTER 16:  From Cavemen Flutes to Bach Fugues: Why Did Evolution Create Art?

PART IV: ON OPTIMISM, PESSIMISM, AND GROUP BEHAVIOR

    CHAPTER 17:  Why Are We So Negative? The Arithmetic of Emotions

    CHAPTER 18:  On Arrogance and Humility: The Norwegian Professor’s Syndrome

    CHAPTER 19:  Overconfidence and Risk: The “It Can’t Happen to Me” Syndrome

    CHAPTER 20:  The Voice Is Herd: On the Sources of Herd Behavior

    CHAPTER 21:  Team Spirit: The Paradox of the Generous Bonuses and the Lazy Workers

PART V: ON RATIONALITY, EMOTIONS, AND GENES

    CHAPTER 22:  Irrational Emotions

    CHAPTER 23:  Nature or Nurture: What Is the Source of Rational Emotions?

                              Epilogue

                              Notes

                              Index