quid pro quo

Quid pro quo (Latin: for this ) is a principle of law and economic principle according to which a person who gives something to it received appropriate consideration. Comparably, it is also with the Latin proverbs manus manum lavat ( " One hand washes the other" ) and do ut des ( "I give so that you give ").

Quid pro quo is used in sociology and game theory as an explanation to explain cooperative behavior in egoists (see Homo economicus ).

Quid pro quo ( quid pro quo? , Literally what for whom?) Also means to prevent accidental interchanging of two things and Quiproquo (who for whom?) The confusion between two people.

Quid pro quo is also used in the pharmaceutical history as a term to bring the possibility of the pharmacist expressed to replace certain components of a preparation by others, to substitute.

In the movie The Silence of the Lambs, the imprisoned serial killer Hannibal Lecter FBI agent Clarice Starling is designed to help solve a series of murders. But for this he is only ready when it reveals information about her private life. This sequence is a vivid example of this principle; Lecter himself speaks repeatedly of quid pro quo.