The Structure of Tradeoffs in Model Building

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Departmental Papers (Philosophy)
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Tradeoff
model
modeling
biological models
richard levins
generality
precision
theoretical virtues
Philosophy
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Matthewson, John
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Despite their best efforts, scientists may be unable to construct models that simultaneously exemplify every theoretical virtue. One explanation for this is the existence of tradeoffs: relationships of attenuation that constrain the extent to which models can have such desirable qualities. In this paper, we characterize three types of tradeoffs theorists may confront. These characterizations are then used to examine the relationships between parameter precision and two types of generality. We show that several of these relationships exhibit tradeoffs and discuss what consequences those tradeoffs have for theoretical practice.

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2009-09-01
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Synthese
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