Question

Which of the following is incorrect about the problem of externalities?

• A. They may be reciprocal or unidirectional.
• B. They refer to an interdependence between two parties that operates outside the price mechanism.
• C. They may be marginal or infra-marginal.
• D. The process of internalization of the negative externality requires that both parties must gain.

Hint:

Internalization of externalities involves adjusting the price mechanism so that the social costs or benefits are reflected in the decisions of the parties involved.

Answer 1

The Correct Option is D

Step 1: Understanding externalities.
Externalities refer to the unintended side effects of an economic activity that affect other parties who did not choose to be affected. Internalization of externalities involves adjusting the market mechanism (e.g., through taxes or subsidies) to account for the external cost or benefit.

Step 2: Analysis of options.
- (A) They may be reciprocal or unidirectional: This is correct. Externalities can flow in both directions between parties (reciprocal) or in one direction (unidirectional).
- (B) They refer to an interdependence between two parties that operates outside the price mechanism: This is correct. Externalities occur when market transactions affect third parties outside the price system.
- (C) They may be marginal or infra-marginal: This is correct. Externalities can be marginal or infra-marginal depending on the scale and impact on the involved parties.
- (D) The process of internalization of the negative externality requires that both parties must gain: This is incorrect. The process of internalization aims to make the external party (or society) whole, but it does not necessarily mean both parties will gain. Often, the party causing the externality will face some cost to internalize it.

Step 3: Conclusion.
The incorrect statement is (D), as internalization does not guarantee a gain for both parties.