Rationalität (of lat. rationalitas = intellectual capacity) generally the reason or reason-talented acting designates. In the extended sense the term is used also in the sense by proportionateness, for example for the proportionateness of means and purpose. Rational acting is therefore present, if desiredPurpose and used means in a reasonable measure stand to each other.
In the special one the term Rationalität within the following ranges is used:
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Rationalität in mathematics is the characteristic of numbers to be able to be presented as break of two whole numbers thus as result of one Division to appear as quotient of these numbers. A number is thus a rational number, if it represents a relationship of two whole numbers.
- the economy of an enterprise
- rationally the Choice: Adam Smith and its successors subordinated to the Homo oeconomicus a rational behavior in decision making.
- rational expectations: Designates the standard undertaking of the economics that individuals form the optimum prognosis over variables, which want to foresee them.
- the individual Rationalität: Inthe game theory a condition, which means that each player secures himself an individual use, which is at least as high as the use, which it can reach from own Kraft. It means thus that no a negotiation result would agree, which would place it more badly asin a situation, in which it does not cooperate.
- the collective Rationalität: In the game theory a condition, which means that in a solution the use is distributed, which the players would have, if all cooperate.
meaning work over Rationalität published Max webers, among other things in the area of the right sociology. Of the final Rationalität (appropriateness) here the material Rationalität (legitimacy) becomes and the formal Rationalität (right security) distinctive (see. also the type of the rational rule). These thoughts became of Luhmann NIC-read in particular in its work authentication by procedures taken up.
In the consequence the term was extended among other things by Jürgen Habermas (Kommunikative Rationalität).