3 Envi-Econ Pollution as Market failure

Pollution as Market Failure

  • Concept: Pollution is a side effect of production, categorized as a specific type of externality that introduces waste and harmful products into the environment, deemed undesirable.

Overview of Lecture Topics

  1. Pollution

  2. Optimal level of pollution

  3. Circular economy

  4. Function of the environment

  5. Coase Theorem

Class Material References

  • Handouts provided for class.

  • Chapters from Tietenberg and Lewis (Chapters 2 & 14).

  • Chapters from Perman et al. (6th edition).

Types of Pollution

  • Pollution manifests in various forms which include:

    • Air Pollution: Emissions that contaminate the air.

    • Water Pollution: Contaminants that affect water bodies, impacting aquatic life.

    • Visual Pollution: Unsightly conditions that detract from the visual aesthetics of an environment.

The Nature of Pollution

  • Society faces a need to optimize pollution levels. The discussion encourages contemplating:

    • If pollution levels can be justified.

    • The optimal balance of pollution in relation to environmental usability.

Environmental Preferences

  • Preferences regarding the environment reflect differing views on the balance between environmental protection and economic use, indicating a lack of unanimity in social and political domains.

Case Studies: Environmental Decisions

  • Regasification Vessel in Italy: Controversy surrounding the placement near Piombino and its potential environmental impact despite state assurances of gas price compensation.

  • Drilling in the Arctic National Wildlife Refuge: Tension between economic benefits (job creation) and conservation concerns (impact on wildlife).

Circular Economy Overview

  • Describes the interrelationship between environmental systems and economic activity, positing the earth as a closed system (Spaceship Economy).

  • 1st Law of Thermodynamics: Matter cannot be created or destroyed, impacting waste disposal methodologies.

  • 2nd Law of Thermodynamics: Not all waste can be recycled due to significant costs or difficulties.

Waste Assimilation and Environmental Limits

  • Smaller amounts of waste can typically be absorbed by the environment, but excessive waste leads to damage by exceeding the environment's assimilative capacity, impacting resources and health (e.g., polluted water can cause illness).

Economic Functions of the Environment

  • The environment serves three key functions:

    • Supplier of resources

    • Waste assimilation mechanism

    • Direct source of utility (providing value to society)

Establishing Optimal Pollution Levels

  • Seeking a balance between economic activity and pollution is crucial. Zero pollution is not feasible as it would halt economic processes; similarly, excessive pollution harms ecosystems.

  • A framework for modeling pollution within economics is necessary, including understanding cost and benefits of emissions.

Emissions & Economic Efficiency

  • The efficient level of emissions offers maximum net benefits (benefits minus costs). Producers have the capacity to lower costs through emissions allowances, impacting profitability.

Coase Theorem Explanation

  • Proposed a mechanism for resolving externalities through property rights assignment, suggesting negotiations toward favorable outcomes occur regardless of who holds the rights.

Critiques of the Coase Theorem

  • Criticized for its assumptions of zero transaction costs and perfect competition. Real-life scenarios often see challenges including:

    • Difficulties in identifying parties involved.

    • Risk of free-riding and negotiations hampered by unequal perceptions of cost and benefit.

Limitations and Broader Implications

  • High transaction costs can obstruct the Coase solution's effectiveness. Thus, the role of governmental oversight can be indispensable in effectively managing pollution matters.

Upcoming Class Focus

  • Next discussions to explore policy instruments aimed at pollution reduction, including:

    • Pollution standards

    • Pollution abatement technologies

    • Pollution taxes

    • Tradable pollution permits.