In: Economics
A) A description of reality
A model of perfect competition is a description of reality because it tells about the actual market potential and position of the business.This is a true measure for calculating actual changes happens in the business.it is near to reality.
B) a model of perfect competition is a standard of comparison by which we industries in the Economy
A model of perfect competition is a standard of comparison Because it's measure the actual position of the market where too many firm's are doing business hence it's takes actual comparative values for comparison.