Answer
1.Planet express is over producing from a social viewpoint
The delivery of packages has an external cost of pollution. As this cost is borne by the society and not the firm, and also planet express is supplying good at equilibrium, we can safely assume that planet express is over producing from a social point of view.
2. Taxing customers of planet express so they are less incentivized to buy the service ; taxing the planet express so that it delivers fewer packages
Taxing the customers will shift the demand curve to the left and reduce the equilibrium quantity. Similarly taxing the firm will degree supply shifting the supply curve to the left
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Question 41 1p Planet Express delivers packages across the galaxy, but their spaceship pollutes the Earth's...