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Principles of Microeconomics

7th Edition
N. Gregory Mankiw
ISBN: 9781305156050

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Principles of Microeconomics

7th Edition
N. Gregory Mankiw
ISBN: 9781305156050
Textbook Problem

An economic model is

a. a mechanical machine that replicates the functioning of the economy.

b. a fully detailed, realistic description of the economy.

c. a simplified representation of some aspect of the economy.

d. a computer program that predicts the future of the economy.

To determine
The definition of an economic model.

Answer

Option “c” is correct.

Explanation

Option (c):

The economic model can be defined as the simplified representation of some aspects of an economy or a simplified framework of a real, complex world. The economist uses the models for the generation of different economic ideas, new concepts, formulation of new principles, solving the questions in the economy, forecasting demand patterns, and so forth. Sometimes, economists use an existing model to analyze a real world problem or issues, but in other cases, they have to develop new models. Thus, option “c” is correct.

Option (a):

An economic model is not a mechanical machine that replicates the functioning of the economy but is just model of a real situation of economy that is made by an economist. Thus, option “a” is incorrect.

Option (b):

An economic model is not a fully-detailed, realistic description of the economy, as it is a representation of a real, complex situation. But, it can’t describe the reality precisely. Thus, option “b” is incorrect.

Option (d):

A model is not a computer program for predicting the future of the economy. It is a small, simplified version of different economic aspects. Thus, option “d” is incorrect.

Concept

Concept introduction:

Economic model: Economic models are the simplified versions of reality used to analyze real-world economic situation and issues.

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