After the early in the day look, i stratify changes in ladies a job from the husbands’ money decile in order to be the cause of changes regarding the connection anywhere between husbands’ income and you will wives’ work (Schwartz 2010)
Determine monetary homogamy, i use spouses’ yearly money therefore the relationship coefficient since a measure of the newest relationship anywhere between spouses’ money. Other methods out of relationship from log-linear activities reveal styles just like people demonstrated here (come across on the internet appendix, Profile A1). Annual money is adjusted for rising cost of living to help you 2012 cash utilizing the consumer rates directory (CPI-U) (Crawford and you will Church 2014) and you may most readily useful coded continuously around the every age to get rid of actions away from inequality and homogamy being affected by changes in surveys’ ideal-programming strategies. After the Burkhauser mais aussi al. (2004), we demand a top password equal to the utmost part of the fresh new partner-spouse attempt which have top-coded earnings on the February CPS inside yearly; all in all, step 3% out of husbands had the earnings most readily useful coded, while
where r ’s the correlation ranging from spouses’ earnings, t is year, we is the time since the very first birth in years, and w is the ratio of people within go out i when you look at the seasons t. Inside the Eq. (1), r ? t reconstructs the fresh cross-sectional correlation trend because the good weighted average of correlation coefficients across the teams. Lees verder