In regard to Anderson’s study in Philadelphia addressing neighborhood life of youth and gangs, those individuals who were respected by residents and who at one time played an important role in socializing youth were referred to as .

Old heads

Explanation: The old heads were a distinct group of men that stood apart from the youth in the neighbourhood. They were instrumental in shaping the lives of the young ones as well as monitoring and advising them to tow a good path.

The old heads had their personal space in the neighbourhoods that couldn't be entered without being invited or before requesting permission. They discussed various issues with the younger ones including those they couldn't hqve with their parents and would have been misinformed bu their peers.

The old heads represented wisdom, stability and encouragement to the younger ones while reminding them that their actions have consequences and they would have to lay in the bed they've made for themselves i.e live with the consequences.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.