The investigation isn’t without constraints. We tested merely two-time factors split from the two decades and you will did not envision trends beyond 2010, a period of time during which extremely educated women in Japan frequently provides taken care of immediately wedding field mismatches because of the modifying their pairing decisions (Fukuda mais aussi al. 2019). Second, we centered only on the basic marriage ceremonies, that can easily be restricting inside white of the latest increases when you look at the separation and divorce and you will remarriage inside the Korea, despite a fairly lower incidence out of separation and reined (Park and Raymo 2013). Korea is now this new world’s really very knowledgeable area (OECD 2018), and analyses out of educational assortative mating will be arguably appeal not on easy methods for example “attended university” but instead towards the a great deal more refined categories off higher education (elizabeth.grams., professional compared to. non-professional colleges). So it limitation is additionally connected to all of our concept of informative categories. Assuming that instructional kinds have the same definition within the 1985–1989 and you may 2005–2009 are potentially tricky considering the fast extension away from studies more than it 20-year period (Shavit and Playground 2016). Instance college studies often means things somewhat some other whenever far more than just 50 % of the people attends school than just when degree is relatively unusual. Focus on the way the modifying meaning of certain informative accounts has an effect on ics is critically important for look into the instructional assortative mating, but we understand that this will be outside of the extent out of currently offered research for the majority communities, as well as Korea.