Many local governments use parking meters on crowded downtown streets. however, the parking spaces along the street are typically hard to find because the metered price is often set below the market price. this represents a which results in a of parking spots.

This represents a "price ceiling", which results in a "shortage" of parking spots.

Metered parking rates that are too low capacity as a price ceiling. The result is a lack of parking spaces, since interest for the parking spaces at the prevailing cost surpasses supply.  

A price ceiling is the greatest value a dealer is permitted to charge for an item or administration. Price ceilings are typically set by law and point of confinement the seller pricing system to guarantee reasonable and sensible business rehearses.

answer(b); ; ; the quantitative or qualitative variable for which the experimenter wishes to determine how its value is affected by the explanatory variable;