Answer:
normative economics
Step-by-step explanation:
The Mayor of your city asked you to perform an analysis to determine if the increase in price is a good or a bad idea, but there is no parameter to compare what good or bad means.
Normative economics focuses on good or bad things, or what should be done in order to be fair or less unfair in this case. While positive economics is based on facts that can be proven right or wrong, not on value judgements.