# Decision theory

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**Decision theory** (or the theory of choice) is the study of the reasoning underlying an agent's choices. Decision theory can be broken into two branches: normative decision theory, which gives advice on how to make the best decisions, given a set of uncertain beliefs and a set of values; and descriptive decision theory, which analyzes how existing, possibly irrational, agents actually make decisions.

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Decision making is like fort nite

- Linear programming is viewed as a revolutionary development giving man the ability to state general objectives and to find, by means of the simplex method, optimal policy decisions for a broad class of practical decision problems of great complexity. In the real world, planning tends to be ad hoc because of the many special-interest groups with their multiple objectives.
- George Dantzig (1983) "Reminiscences about the origins of linear programming". In:
*Mathematical programming : the state of the art*. New York, 1983, p. 78-86.

- George Dantzig (1983) "Reminiscences about the origins of linear programming". In:

- Pascal is called the founder of modern probability theory. He earns this title not only for the familiar correspondence with Fermat on games of chance, but also for his conception of decision theory, and because he was an instrument in the demolition of probabilism, a doctrine which would have precluded rational probability theory.
- Ian Hacking
*The Emergence Of Probability,*Chapter 3, Opinion, p. 23.

- Ian Hacking

- Decision theory can be pursued not only for the purposes of building foundations for political economy, or of understanding and explaining phenomena that are in themselves intrinsically interesting, but also for the purpose of offering direct advice to business and governmental decision makers. For reasons not clear to me, this territory was very sparsely settled prior to World War II. Such inhabitants as it had were mainly industrial engineers, students of public administration, and specialists in business functions, none of whom especially identified themselves with the economic sciences...
- Herbert A. Simon, "Rational decision making in business organizations." Nobel Prize lecture 1978, published in:
*The American economic review*69(4) (1979): 493-513;

- Herbert A. Simon, "Rational decision making in business organizations." Nobel Prize lecture 1978, published in: