Marital stress over money? The root may lie not in your level of need but in what you want, materially speaking. According to a new study at Brigham Young University, highly materialistic spouses are 40% more likely than their less materialistic counterparts to experience dissatisfaction in marriage — and this holds true across all income levels. “For a highly materialistic spouse or couple, it takes less financial disturbance to trigger a financial problem,” explains study author Jason Carroll of BYU, who published his research in the latest issue of the Family and Consumer Sciences Research Journal.