Which of the following is NOT a form of substitutability?

Question

Quizplus · Accepted Answer

Congestion-based pricing is a method used to manage demand, particularly in transportation and utilities, by adjusting prices during peak times to encourage use during off-peak times. It does not directly relate to substitutability, which involves replacing one product or service with another. Requiring visitor and/or operational qualification, site hardening, and the construction of physical barriers are all methods that can be used to substitute for direct human presence or intervention, thereby relating to substitutability.

Which of the Following Is NOT a Form of Substitutability