Why do economists regard imperfect competition as undesirable?

Imperfect competition is not necessarily viewed as undesirable, but it is viewed as different than perfect competition. Perfect competition is defined by a very strict set of rules that include having no barriers to entry and no single business having the ability to influence price. 

just run

explanation: if you are fast enough they wont catch you fam

answer; william penn's approach made the colony diverse by attracting many types of people and religions;