Ethics are both the rules and standards governing the conduct of a person or the members of a profession.
As rules,ethics are usual,customary and universal courses of action or behavior in business courses,so they not only accord with normal,common,or ordinary practice or procedure,but also are based on custom or tradition though sometimes not written laws or contracts.For this reason,they must be observed by every practitioner of mercantile pursuits.
On the other hand,ethics are acknowledged requirement,which are used to measure business morality that is the quality of being in accord with the standards of right or good conduct.
Business ethics means that one should be loyal to others,should be truthful and fair in dealing with others,and should be of refusal to engage in fraud,deceit or dissembling.
All the above leads up to the reason that it is necessary to include business ethics in business courses.