Among untenured biological and physical sciences faculty members in the United States, men and women report marked differences in job satisfaction, according to a 12 July report by Harvard University's Collaborative on Academic Careers in Higher Education. In both disciplines, men are happier than women about the time allotted for research, and the compatibility of working for tenure while raising a family. In biological sciences, men are more content with their teaching responsibilities and work–life balance; in physical sciences, men are happier with their opportunities to collaborate with tenured faculty members. Men are generally more satisfied across all academic areas, and physical sciences faculty members are happier than those in any other field.