Explanation: Observational study involves careful and physical observation of events. In this kind of study, the independent variable is not under the control of the experimenter as opposed to experimental study.
In the scenario above, Observational study is used to draw inference from a sample to a population, by recording the number of physical or verbal attacks while the researcher observes. The researcher has no control over the independent variable as he only records what he observes.
Fiscal policy directly affects the aggregate demand of an economy. Recall that aggregate demand is the total number of final goods and services in an economy, which include consumption, investment, government spending, and net exports. Fiscal policy has an effect on each of these categories.
In the text it says that local government can be special districts, city governments, and county government. So it says special districts and county government and both local government.
