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Information economics or the economics of information is the branch of microeconomics that studies how information and information systems affect an economy and economic decisions. [ 1 ] One application considers information embodied in certain types of commodities that are "expensive to produce but cheap to reproduce."
Quantitative uses of the terms uncertainty and risk are fairly consistent among fields such as probability theory, actuarial science, and information theory. Some also create new terms without substantially changing the definitions of uncertainty or risk. For example, surprisal is a variation on uncertainty sometimes used in information theory ...
Thus, there is incomplete information (because the suspect has private information), making it a Bayesian game. There is a probability p that the suspect is a criminal and a probability 1-p that the suspect is a civilian; both players are aware of this probability (common prior assumption, which can be converted into a complete-information game ...
Example of imperfect information game played on networks [ edit ] Consider a network game of local provision of public good [ 4 ] when agent's actions are strategic substitutes, (i.e. the benefit of the individual from undertaking a certain action is not greater if his partners undertake the same action) thus, in the case of strategic ...
One early commercial application of information theory was in the field of seismic oil exploration. Work in this field made it possible to strip off and separate the unwanted noise from the desired seismic signal. Information theory and digital signal processing offer a major improvement of resolution and image clarity over previous analog methods.
In economics and game theory, complete information is an economic situation or game in which knowledge about other market participants or players is available to all participants. The utility functions (including risk aversion), payoffs, strategies and "types" of players are thus common knowledge .
The work for which he won the 1994 Nobel Prize in economics was a series of articles published in 1967 and 1968 which established what has become the standard framework for analyzing "games of incomplete information", situations in which the various strategic decisionmakers have different information about the parameters of the game.
The Blackwell order has many applications in decision theory and economics, in particular in contract theory. For example, if two information structures in a principal-agent model can be ranked in the Blackwell sense, then the more informative one is more efficient in the sense of inducing a smaller cost for second-best implementation. [6] [7]