In: Economics
Answer)
(a) As we can see in the below diagram, the initial equilibrium price is "P" and the equilibrium quantity is "Y".
After the tax, the equilibrium quantity decreases to Y1 as the tax makes the coffee costlier for the buyer due to which there decrease in the quantity demanded.
(b) After-tax, the price paid by the consumer increases and the same has been represented on the below diagram and labelled as P(c).
(c) After-tax, the price received by the seller decreases and the same has been represented on the below diagram and labelled as P(s)
(d) The orange colour region in the below diagram represents the tax revenue and it is calculated as -
Tax revenue = Tax per unit × Quantity after tax.
(e) The green colour region represents the consumer surplus after tax.
(f) The pink coloured region is the producer surplus.
(g) The red coloured region represents the deadweight loss.
(h) Deadweight loss is the loss that represents the economic loss (or inefficiently ) arising out of a policy. It basically represents a decrease in the overall welfare of society.