Answer
Economists know their supply and demand graphs! They oppose the uses of floors and ceilings because it does more harm than good. The price floors and ceilings stop equilibrium from being met so that resources are not allocated efficiently and this result does little help and a lot of harm in the long run.
Work Step by Step
Think about what economists think of, reaching equilibrium is a priority for economists. Then understand the graphic representation of floors and ceilings. Finally identify why it is so harmful based on shortages and surplus.