Month: September 2007

2 – The Dark Ages

2 – The Dark Ages

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In this lecture, Professor Donald Kagan explores the earliest history of Greek civilization. He demonstrates how small agricultural enclaves eventually turned into great cities of power and wealth in the Bronze Age, taking as his examples first Minoan Crete and then Mycenaean Greece. He also argues that these civilizations were closely related to the great monarchies of the ancient Near East. He points out that the Mycenaean age eventually came to an abrupt end probably through a process of warfare and migration. Reconstructing the Mycenaean age is possible through archaeological evidence and through epic poetry (Homer). Finally, he provides an account of the collapse of the Mycenaean world, and explains how in its aftermath, the Greeks were poised to start their civilization over on a new slate.

2 – Putting Yourselves into Other People’s Shoes

2 – Putting Yourselves into Other People’s Shoes

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At the start of the lecture, we introduce the “formal ingredients” of a game: the players, their strategies and their payoffs. Then we return to the main lessons from last time: not playing a dominated strategy; and putting ourselves into others’ shoes. We apply these first to defending the Roman Empire against Hannibal; and then to picking a number in the game from last time. We learn that, when you put yourself in someone else’s shoes, you should consider not only their goals, but also how sophisticated are they (are they rational?), and how much do they know about you (do they know that you are rational?). We introduce a new idea: the iterative deletion of dominated strategies. Finally, we discuss the difference between something being known and it being commonly known.

1 – Introduction

1 – Introduction

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Professor Donald Kagan explains why people should study the ancient Greeks. He argues that the Greeks are worthy of our study not only because of their vast achievements and contributions to Western civilization (such as in the fields of science, law, and politics) but also because they offer a unique perspective on humanity. To the Greeks, man was both simultaneously capable of the greatest achievements and the worst crimes; he was both great and important, but also mortal and fallible. He was a tragic figure, powerful but limited. Therefore, by studying the Greeks, one gains insight into a tension that has gripped and shaped the West and the rest of the world through its influence. In short, to study the Greeks is to study the nature of human experience.

1 – Introduction: Five First Lessons

1 – Introduction: Five First Lessons

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We introduce Game Theory by playing a game. We organize the game into players, their strategies, and their goals or payoffs; and we learn that we should decide what our goals are before we make choices. With some plausible payoffs, our game is a prisoners’ dilemma. We learn that we should never choose a dominated strategy; but that rational play by rational players can lead to bad outcomes. We discuss some prisoners’ dilemmas in the real world and some possible real-world remedies. With other plausible payoffs, our game is a coordination problem and has very different outcomes: so different payoffs matter. We often need to think, not only about our own payoffs, but also others’ payoffs. We should put ourselves in others’ shoes and try to predict what they will do. This is the essence of strategic thinking.