Which of the following is an example of a public good? a delivery truck national defence O milk a pizza

A local school administrator observes an increase in the number of flu cases in the public schools over the last two years. She is concerned that some families cannot afford flu vaccine and are therefore not having children vaccinated. She is also concerned that the failure to vaccinate some children is putting other children at risk, so she proposes that the state subsidize vaccines to increase coverage rates. a. Determine whether the failure to vaccinate some children is an external benefit or an external cost. If an external cost is present, move point A and point B to show the marginal social cost curve. If an external benefit is present, move point A and point B to show the marginal social benefit curve. Place point C at the equilibrium outcome. Place point D at the socially optimal outcome. Flu vaccines A B D Supply (marginal private cost) Price

The following graph represents the market for high-emissions cars. Answer this question assuming that the externality is not internalised. Which quantity is socially optimal (i.e. what is the efficient quantity)? What is the deadweight loss generated by the externality?

K The graph illustrates the unregulated market for pesticide. When the factories produce pesticide, they also create waste which they dump into a lake on the outskirts of a small town. The marginal external cost of the dumped waste is equal to the marginal private cost of producing pesticide (that is, the marginal social cost of producing the pesticide is double the marginal private cost). What is the quantity of pesticide produced if no one owns the lake and what is the efficient quantity of pesticide? What is the deadweight loss? *** If no one owns the lake, the quantity of pesticide produced is 30 tons a week. The efficient quantity of pesticide is 20 tons a week. If no one owns the lake, the deadweight loss is $ >>> Answer to 2 decimal places. a week. 1260 1080- 900- 720- 540- 360- 180- 0- 0 Price (dollars per ton) | 4 S D 30 60 90 120 150 180 210 240 270 300 Quantity (tons of pesticide per week) Q P