Economics Dictionary of Arguments

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Models, philosophy, logic: A model is obtained when a logical formula provides true statements by inserting objects instead of the free variables. One problem is the exclusion of unintended models. See also model theory.
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Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.

 
Author Concept Summary/Quotes Sources

Joseph Weizenbaum on Models - Dictionary of Arguments

I 195
Model/Weizenbaum: a model is sufficient for one theory, i.e. it obeys the behavioural laws that can be derived from the theory. With a given theory of a system B, we can say that A is a model of B, if this theory of B is also a v of A at the same time.
>Theories
, >Derivation, >Derivability, >Model theory.
There does not have to be a causal relationship between the model and the modelled object. Because we always have to make sure that everything we learn from a modelled situation by studying its model is also valid without the model.
>Causality, >Causal relation, >Simulation.
I 196
Computers create the possibility of a completely new kind of relationship between theories and models. The computer interprets the entered texts, i. e. that the behavior of the computer is determined by the texts.
Computer program: Theories in the form of computer programs are common theories from a certain point of view.
>Computer programming, >Software, >Computers.
I 197
In this way, a computer can simulate a real pendulum if suitable values are assigned to the terms of its program. This program would then be both a theory and a model.

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Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments
The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition.

Weizenbaum I
Joseph Weizenbaum
Computer Power and Human Reason. From Judgment to Calculation, W. H. Freeman & Comp. 1976
German Edition:
Die Macht der Computer und die Ohnmacht der Vernunft Frankfurt/M. 1978


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