In cities that have high levels of air pollution, people with asthma have 2 poin increased medical costs. This is an example of: * O government regulation. O a positive externality. a negative externality. a reason for national health care. Which of the following is an example of a price floor * 2 points Rent Control Minimum Wage Subsidy Excise Tax The major department of the government responsible for reducing air 2 points pollution is: * O NLRB OSHA O EPA O FICA