## An Engine, Not a Camera: How Financial Models Shape Markets (Google eBook)In An Engine, Not a Camera, Donald MacKenzie argues that the emergence of modern economic theories of finance affected financial markets in fundamental ways. These new, Nobel Prize-winning theories, based on elegant mathematical models of markets, were not simply external analyses but intrinsic parts of economic processes. Paraphrasing Milton Friedman, MacKenzie says that economic models are an engine of inquiry rather than a camera to reproduce empirical facts. More than that, the emergence of an authoritative theory of financial markets altered those markets fundamentally. For example, in 1970, there was almost no trading in financial derivatives such as "futures." By June of 2004, derivatives contracts totaling $273 trillion were outstanding worldwide. MacKenzie suggests that this growth could never have happened without the development of theories that gave derivatives legitimacy and explained their complexities. MacKenzie examines the role played by finance theory in the two most serious crises to hit the world's financial markets in recent years: the stock market crash of 1987 and the market turmoil that engulfed the hedge fund Long-Term Capital Management in 1998. He also looks at finance theory that is somewhat beyond the mainstream -- chaos theorist Benoit Mandelbrot's model of "wild" randomness. MacKenzie's pioneering work in the social studies of finance will interest anyone who wants to understand how America's financial markets have grown into their current form. |

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### Contents

1 | |

2 Transforming Finance | 37 |

3 Theory and Practice | 69 |

4 Tests Anomalies and Monsters | 89 |

5 Pricing Options | 119 |

6 Pits Bodies and Theorems | 143 |

7 The Fall | 179 |

8 Arbitrage | 211 |

Appendix D The BlackScholes Equation for a European Option on a Non DividendBearing Stock | 283 |

Appendix E Pricing Options in a Binomial World | 285 |

Appendix F Repo Haircuts and Reverse Repo | 289 |

Appendix G A Typical SwapSpread Arbitrage Trade | 291 |

Appendix H List of Interviewees | 293 |

Glossary | 297 |

Notes | 303 |

Sources of Unpublished Documents | 331 |

9 Models and Markets | 243 |

Appendix A An Example of Modigliani and Millers Arbitrage Proof of the Irrelevance of Capital Structure to Total Market Value | 277 |

Appendix B Lévy Distributions | 279 |

Appendix C Sprenkles and Kassoufs Equations for Warrant Prices | 281 |

333 | |

Series List | 369 |

371 | |

### Common terms and phrases

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