Evolution of the Marriage Earnings Gap for Women
利用SIPP面板数据与社会保障收入记录，研究了1936至1975年出生女性群体的婚姻收入差距，发现无子女的已婚女性收入高于单身女性，但母亲身份的收入差距依然显著。
Using Survey of Income and Program Participation (SIPP) panels linked to Social Security earnings records, we examine the earnings gap associated with marriage for cohorts of women born between 1936 and 1975. We compare ordinary least squares and fixed-effect estimates. We find that among women who work, the marital earnings gap has all but disappeared in fixed-effects estimates for recent birth cohorts. In fact, among women without children, married women earn more than single women, implying a diminished role for specialization when children are not present. In contrast, the motherhood earnings gap remains large even for recent birth cohorts.