Concepts inNo regrets: or: Edith Piaf revamps decision theory

Decision theory

Decision theory in economics, psychology, philosophy, mathematics, and statistics is concerned with identifying the values, uncertainties and other issues relevant in a given decision, its rationality, and the resulting optimal decision. It is closely related to the field of game theory as to interactions of agents with at least partially conflicting interests whose decisions affect each other.  more from Wikipedia

Édith Piaf

Édith Piaf, born Édith Giovanna Gassion, was a French singer and cultural icon who became widely regarded as France's national popular singer, as well as being one of France's greatest international stars. Her singing reflected her life, with her specialty being ballads. Among her songs are "La Vie en rose" (1946), "Non, je ne regrette rien" (1960), "Hymne à l'amour" (1949), "Milord" (1959), "La Foule" (1957), "l'Accordéoniste" (1955), and "Padam... Padam... " (1951).  more from Wikipedia

David Lewis (philosopher)

David Kellogg Lewis (September 28, 1941 ¿ October 14, 2001) was an American philosopher. Lewis taught briefly at UCLA and then at Princeton from 1970 until his death. He is also closely associated with Australia, whose philosophical community he visited almost annually for more than thirty years. He has made contributions in philosophy of language, philosophy of mind, metaphysics, epistemology, and philosophical logic.  more from Wikipedia

Expected utility hypothesis

In economics, game theory, and decision theory the expected utility hypothesis is a theory of utility in which "betting preferences" of people with regard to uncertain outcomes (gambles) are represented by a function of the payouts (whether in money or other goods), the probabilities of occurrence, risk aversion, and the different utility of the same payout to people with different assets or personal preferences.  more from Wikipedia

Conditional probability

In probability theory, the conditional probability of given is the probability of if is known to occur (or have occurred. ) It is commonly denoted, and sometimes . (The vertical line should not be mistaken for logical OR. ) can be visualised as the probability of event when the sample space is restricted to event .  more from Wikipedia

Rational expectations

Rational expectations is a hypothesis in economics which states that agents' predictions of the future value of economically relevant variables are not systematically wrong in that all errors are random. Equivalently, this is to say that agents' expectations equal true statistical expected values. An alternative formulation is that rational expectations are model-consistent expectations, in that the agents inside the model assume the model's predictions are valid.  more from Wikipedia

Expected value

In probability theory, the expected value (or expectation, or mathematical expectation, or mean, or the first moment) of a random variable is the weighted average of all possible values that this random variable can take on. The weights used in computing this average correspond to the probabilities in case of a discrete random variable, or densities in case of a continuous random variable.  more from Wikipedia

Game theory

Game theory is the study of strategic decision making. More formally, it is "the study of mathematical models of conflict and cooperation between intelligent rational decision-makers. " An alternative term suggested "as a more descriptive name for the discipline" is interactive decision theory. Game theory is mainly used in economics, political science, and psychology, as well as logic and biology.  more from Wikipedia