Final answer:
The decision to cease the new tax project due to high collection costs relates to the cost saving rule, ensuring efficiency in tax systems.
Step-by-step explanation:
When a tax administration considers the implementation of a new tax, achieving a balance between the revenue generated and the cost of collection is critical. The cessation of the new tax project due to over expensing in the collection process adheres to the cost saving rule. This rule ensures that the tax is efficient, meaning that it is cost-effective to administer and successful at generating the projected $1 million per month without incurring expenses that outweigh the revenue. An efficient tax system must also be equitable and simple so that taxpayers understand and are receptive to the taxation policies. Therefore, taxes must meet these principles to avoid negatively impacting individuals, businesses, and the overall economy.