Rome was a republic before it was an empire. Romans had the first Senate, elected by the people. The third option is also correct, because even the if the emperor did something that was against the law, he would be put on trial. Also the last one, those are called "Law's" You find them everywhere. xD Hope I helped :)
<u>Positive Economists'</u> purpose is to create an explanation of a certain economic phenomena.
These economists use statistics in order to find out the aggregate behavior of the people because of a certain economic decisions. From this, they can developed an understanding to explain the economic phenomena.
<u>The normative economists' </u>purpose is to find out whether a certain economic decision achieve its original purpose.
They used statistic as a quantitative measurements. They determine the goals of a certain economic policy and They compared the statistic before the economic policy was implemented to the condition after the implementation .
This will help them know whether the policy achieve its original goals.
For example. if a certain policy was created to reduce unemployment, normative economists will compare the data/statistic about the number of employment before and after the policy.
