Final answer:
An example of a transaction cost associated with negotiating the reduction of a negative externality is the time required to negotiate an agreement. Transaction costs can make private solutions to reduce negative externalities no longer feasible or easier depending on the costs involved.
Step-by-step explanation:
An example of a transaction cost associated with negotiating the reduction of a negative externality is the time required to negotiate an agreement to reduce the negative externality. Transaction costs refer to the costs involved in making an agreement or conducting a transaction, such as legal fees, administrative costs, and the time and effort required.
Transaction costs can affect private solutions to externality problems in various ways. They may make private solutions to reduce negative externalities no longer feasible due to the high costs involved. Alternatively, transaction costs may make private solutions to reduce negative externalities easier if there are lower costs associated with the negotiation and implementation of solutions.