“…Researchers assumed that maternal employment would be associated with stress, overload, and negative outcomes for families. These assumptions underlie what is known as the "scarcity hypothesis" (Marshall & Barnett, 1993), which maintains that because individuals have limits of time and energy, additional responsibilities will necessarily create tension and overload (e.g., Coser, 1974). Research in this tradition focuses on the concept of work-family conflict, which Greenhaus and Beutell (1985) defined as "a form of interrole conflict in which the role pressures from the work and family domains are mutually incompatible in some respect.…”