This study investigates the spillover-crossover effects of multiple job holding (MJH) on multiple job holders' (MJHers) spouses’ job satisfaction and mental health, specifically through the work-family conflict (WFC) and spousal family-to-work (FWC). Drawing upon the Job Demands-Resources (JD-R) theory, we explore how the hours beyond what a MJHer works in their main job impact their spouse’s job satisfaction and mental health, and the dynamic work-family conflict (WFC) and family-to-work conflict (FWC) play in this impact. Using a nationally representative dataset from the Household, Income, and Labor Dynamics in Australia (HILDA) survey, we examine the relationships and spillover-crossover effects among the number of hours MJHers work, WFC, FWC, job satisfaction, and the well-being of MJHers’ spouses through our proposed Demands-Based Spillover-Crossover Model (DB-SCM).
