The following graph shows the daily market for wine when the tax on sellers set at $0 per bottle. Suppose the government institutes a tax of $5.80 per bottle, to be paid by the seller.
(Hint: To see the impact of the tax, enter the value of the tax in the Tax on Sellers field and move the green line to the after-tax equilibrium by adjusting the value in the Quantity field. Then enter zero in the Tax on Sellers field. You should see a tax wedge between the price buyers pay and the price sellers receive.)