Answer:
a. self-interested paper producers will not consider the full cost of the dioxin pollution they create.
Step-by-step explanation:
Externality basically causes the market to produce a large amount or little amount of goods and service, thereby causing an inefficient distribution or allocation of resources.
Therefore, when the manufacturing or consumption of a particular product by the consumers leads to an additional cost for a third party, it is known as negative externality.
Hence, Dioxin emission that results from the production of paper is a good example of a negative externality because self-interested paper producers will not consider the full cost of the dioxin pollution they create.