Who is the american psychologist who proposed the functionalist approach and whose textbook, principles of psychology, dominated the field of psychology for 50 years after its publication?

William James is the American psychologist who proposed the functionalist approach and whose textbook, Principles of Psychology, dominated the field of psychology for 50 years after its publication.

true because they can bargain

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.