by KenBinmore (Author)
It is widely held that Bayesian decision theory is the final word on how a rational person should make decisions. However, Leonard Savage - the inventor of Bayesian decision theory - argued that it would be ridiculous to use his theory outside the kind of small world in which it is always possible to 'look before you leap'. If taken seriously, this view makes Bayesian decision theory inappropriate for the large worlds of scientific discovery and macroeconomic enterprise. When is it correct to use Bayesian decision theory - and when does it need to be modified? Using a minimum of mathematics, Rational Decisions clearly explains the foundations of Bayesian decision theory and shows why Savage restricted the theory's application to small worlds. The book is a wide-ranging exploration of standard theories of choice and belief under risk and uncertainty. Ken Binmore discusses the various philosophical attitudes related to the nature of probability and offers resolutions to paradoxes believed to hinder further progress. In arguing that the Bayesian approach to knowledge is inadequate in a large world, Binmore proposes an extension to Bayesian decision theory - allowing the idea of a mixed strategy in game theory to be expanded to a larger set of what Binmore refers to as 'muddled' strategies. Written by one of the world's leading game theorists, Rational Decisions is the touchstone for anyone needing a concise, accessible, and expert view on Bayesian decision making.
Format: Hardcover
Pages: 224
Publisher: Princeton University Press
Published: 29 Dec 2008
ISBN 10: 0691130744
ISBN 13: 9780691130743
Book Overview: Ken Binmore is one of our deepest thinkers on the foundations of economics and game theory. Here he gives us his personal take on standard decision theory and his own extension of the theory to the case in which decision makers cannot assign unambiguous probabilities to future events. This book will be of considerable interest to economists and philosophers alike. -- Eric Maskin, Nobel Prize-winning economist Strong on ideas and opinions but low on jargon, this is one of the most lively discussions of the strengths and limitations of the Bayesian approach to decision making that I have ever come across. Clearly and strongly argued, controversial, and a pleasure to read. -- Riccardo Rebonato, author of The Plight of the Fortune Tellers Ken Binmore's new book on rational decisions is a superb up-to-date introduction to the now large and complex literature of this subject. The touch is light, but the examples and theorems are precise. The references are more than ample to lead the reader to more details on those parts of the subject that are of most interest. Although the author is an economist, the content will appeal to philosophers, psychologists, and statisticians as well. -- Patrick Suppes, Stanford University Well-written, with many nice illustrative examples, this book contributes to the ongoing debate on whether the Bayesian method is the proper normative framework for making decisions and updating beliefs. The book is extremely impressive in its breadth of cited references: historical, mathematical, philosophical, and statistical. -- Mark Machina, University of California, San Diego This book takes the reader from the very beginnings of decision theory through innovative new work, and it is written concisely and clearly enough to make the journey seem effortless. It will be essential reading for decision theorists and economists in general, whether new to the field or old hands. -- Larry Samuelson, Yale University
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