A growing trend in MBA programs in the US is for students to go through the entire program together as a cohort class. In large MBA programs the cohort may be divided into smaller sub-cohorts. The members of each cohort journey together along a common path of professional learning and socialization that leads to lifelong personal and professional growth and development. Thus, each student is part of a group in which fellow students take an interest in each other's attainments. MBA cohort members form mutually supporting networks that endure, for many of them, throughout their professional careers.