Answer:
- Government corrects positive externalities by subsidizing the activity, as they do with education.
Positive externalities are encouraged by subsidizing them so that they increase the more.
- corrects negative externalities by regulating or taxing activity in order to discourage pollution.
Negative externalities are punished by regulation and taxation to discourage their spread.
- provides public goods like national defense because of the free-rider problem
Public goods need to be provided because everyone needs access to them and not just a select few.
- promotes competition because markets with few firms tend to be inefficient.
Monopolies have been shown to be inefficient as they do not have any competition that inspires innovation.
- provides assistance to those in need in order to improve equity.
- attempts to pursue macroeconomic goals, including low unemployment, strong growth, and stability.
It is a government's duty to ensure that the country is experiencing certain macro economic goals such as low unemployment, strong growth and economic stability.
Note: Options were too much to attach to answer as they required multiple pictures so I hope you have access to those options.