Which of the following is NOT true? Group of answer choices A per-unit subsidy, in which the government supplements seller revenue, has the opposite effect of a tax. When a tax is imposed, such as a sales tax, the total price the consumer pays is greater than the revenue the seller ultimately receives. The net effect of a tax, regardless of whom it is imposed upon, is a lower quantity transacted. Pollution is an example of a "positive externality" because it is borne by parties outside the transaction