Tax Revenue and Producer Surplus After Imposition Steps: - Identify tax revenue as the rectangular area between pre-tax supply and post-tax supply curves, from quantity 0 to equilibrium quantity, equal to tax per unit times quantity sold. - Locate new producer surplus as the triangular area below the price producers receive (post-tax supply curve) and above the original supply curve, up to the new equilibrium quantity. - Match diagram areas: tax revenue covers combined trapezoidal regions w + x + y; new producer surplus is the smaller triangle v. - Verify by subtracting deadweight loss and consumer surplus changes from total surplus to isolate these components. Why D is correct: - Tax revenue equals tax rate times quantity (formula: T * Q_t), forming areas w + x + y; new producer surplus is the residual triangle v under the price line. Why the others are wrong: - A: Subtracts x from w, understating tax revenue by excluding part of the tax wedge. - B: Adds only w + x for tax, omitting y and miscalculating the full wedge area. - …