Answer:
b. a representation of a theory or a part of a theory
Step-by-step explanation:
A model is different from theory because is a more applied and empirical representation of a situation while the theory is more abstract. An economic model is a simplified prediction of a complex and real economic behavior, it uses variables to analyze different scenarios, it also uses logical and quantitative relationships between economic processes, is usually mathematical. The results of these models can lead to a new investigation, theorization or to prove theories.
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