The socially optimal amount of pollution abatement or reduction occurs when A. there is zero pollution. B. society’s marginal benefit of pollution abatement is zero. C. society’s marginal benefit of pollution abatement equals its marginal cost. D. society’s marginal benefit of pollution abatement exceeds the marginal cost of pollution abatement by the greatest amount.
The correct answer and explanation is :
The correct answer is:
C. Society’s marginal benefit of pollution abatement equals its marginal cost.
Explanation:
The socially optimal level of pollution abatement is determined by balancing the marginal benefit (MB) and marginal cost (MC) of pollution reduction. This principle is based on economic efficiency, ensuring that resources are allocated in a way that maximizes net social benefits.
- Marginal Benefit of Abatement: This refers to the additional benefits society gains from reducing pollution, such as improved public health, better environmental quality, and enhanced biodiversity. Initially, the marginal benefit of reducing pollution is high because severe pollution causes significant harm.
- Marginal Cost of Abatement: This represents the additional cost incurred in reducing pollution, including investments in cleaner technology, regulatory compliance costs for businesses, and potential economic trade-offs like job losses in polluting industries. As pollution reduction efforts intensify, the cost of further abatement tends to rise.
The socially optimal level of pollution abatement occurs where MB = MC because:
- If MB > MC, additional pollution abatement is beneficial, and society should continue reducing pollution.
- If MB < MC, the cost of further abatement exceeds the benefits, leading to an inefficient allocation of resources.
- When MB = MC, society achieves the highest net benefit from pollution control, meaning that any further reduction would impose higher costs than the benefits it provides.
This approach acknowledges that while pollution reduction is important, achieving zero pollution (option A) is unrealistic and inefficient due to excessively high costs. Similarly, stopping abatement when the marginal benefit is zero (option B) would ignore the significant benefits of pollution control before that point. Finally, maximizing the difference between benefits and costs (option D) does not ensure equilibrium, as MB and MC need to be balanced for optimal efficiency.