I y to income inequality towards the pieces because of changes in monetary homogamy pre and post parenthood, so we disaggregate the latest section when you look at the all these parts you to is actually passionate by the changes in ladies’ a position.

Strengthening on the previous literary works, i arrived at a few standards towards vehicle operators out of changes in couples’ financial homogamy between 1968 and you can 2015. First, we anticipate you to changes in spouses’ economic resemblance shortly after parenthood tend to gamble a major part when you look at the outlining increases inside the couples’ monetary homogamy and will be mostly driven by alterations in ladies’ work. 2nd, i anticipate one to alterations in spouses’ monetary similarity before parenthood tend to play a smaller part in the outlining increases during the couples’ financial homogamy and this such change could well be determined a great deal more by the shifts during the women’s employment designs within beginning of the matrimony and you can parenthood and you will reduced by changes in assortative mating just like the counted up front out-of matrimony. If our very own traditional are right, we are going to discover that changes in just how parenthood molds ladies’ economic benefits so you can parents was a button rider of contribution out-of financial homogamy so you’re able to inequality all over group.

Analysis, Samples, and Procedures

Because revealed from inside the Table step one, we explore studies off about three studies so you can perform the analyses: the new 19682015 March Newest Inhabitants Surveys (CPS); the 1960, 1970, and you will 1980 You.S. ); additionally the 19842014 Questionnaire cash and you will System Contribution (SIPP) (U.S. Census Agency 2015). The latest CPS try the priining trends within the monetary homogamy ahead of and you will just after parenthood. Its a mix-sectional family questionnaire which was extensively used to analysis changes from inside the inequality in the usa. Its well-suited to the research whilst possess highest products, has income details about both partners, which will be consistent around the a lengthy time period. The brand new CPS boasts information on the age of the newest oldest child on the family, and therefore i used to proxy new timing out of entry toward parenthood.

Most of our very own CPS analyses have confidence in a sample away from partnered couples where in fact the spouse are decades 45 otherwise young and you can their oldest child are decades 010 (Letter = 333,455 partners). The fresh new adjusted CPS sample is representative of noninstitutionalized people out-of heterosexual married people in the united states where neither partner is in the military, new spouse try decades 45 or younger, and also the couple’s earliest youngster was years 0ten. This new CPS details yearly earning methods regarding the early in the day 12 months, for example the gains advertised of the people having a new baby match earnings in the year prior to childbirth. I leverage this particular feature and use couples’ income about seasons just before childbearing determine pre-delivery homogamy and you may people about ten years immediately after parenthood in order to level post-delivery homogamy.

Method

This new CPS data do not allow me to identify the latest time off income prior to parenthood getting people supposed further right back than simply one year just before basic delivery. One method to develop this new pre-birth homogamy scale that have CPS research, but not, is always to become all the partnered childless couples (understand the last row inside the Table step 1). Which sensitivity attempt develops the newest measurement windows out-of money to help you way more than just the year prior to beginning, where earnings might possibly be affected by pregnancy; additionally, it screening the sensitivity in our results to changes in selection into the parenthood, since not all of those individuals people often transition so you’re able to parenthood inside the after that decades. In other sensitivity analyses, i and expand the dimensions windows of blog post-birth homogamy to add people which have an eldest own youngster years 018. I limitation part of the shot so you’re able to young moms and dads to minimize the brand new inclusion out-of repartnered couples, attrition due to divorce, and you may earlier lovers that have children out of the family which means maybe not said toward CPS roster.