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Externalities and Social Optimum
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If a factory pollutes a river, leading to a decline in fish populations, what is the primary underlying cause of this environmental issue in economic terms?

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Learning Path

Question & Answer
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Choose AnswerChoose the Best Answer

A

The factory's private costs are equal to its social costs

B

The factory does not account for the external costs of pollution

C

The government heavily regulates the factory's operations

D

The fish population is naturally declining due to climate change

Understanding the Answer

Let's break down why this is correct

The factory does not include the damage it causes to the river in its own costs. Other options are incorrect because If the factory’s costs were the same as society’s costs, it would pay for all the harm it causes; Regulation can change what a factory does, but the question is why the pollution happened in the first place.

Key Concepts

Externalities
Social Optimum
Market Inefficiency
Topic

Externalities and Social Optimum

Difficulty

medium level question

Cognitive Level

understand

Deep Dive: Externalities and Social Optimum

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Definition
Definition

Externalities occur when the marginal social benefit or cost of a good differs from the private benefit or cost. The socially optimal output level accounts for externalities, aiming to align production with maximum social welfare by considering all costs and benefits. Understanding externalities is crucial to address market inefficiencies and achieve overall welfare maximization.

Topic Definition

Externalities occur when the marginal social benefit or cost of a good differs from the private benefit or cost. The socially optimal output level accounts for externalities, aiming to align production with maximum social welfare by considering all costs and benefits. Understanding externalities is crucial to address market inefficiencies and achieve overall welfare maximization.

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