... This assertion has only partially been explored as a number of authors have studied the impact of educational expansion on various policy-relevant aspects. This includes impact on the labour market (Li, Whalley, & Xing, 2014;Knight, Deng, & Li, 2017;Li, Ma, Meng, Qiao, & Shi, 2017;Xing, 2018;Yang, 2018;Huang & Zhu, 2020;Dai, Cai, & Zhu, 2021), inequality (Meng, Shen, & Xue, 2013), rural children's schooling (Lu & Zhang, 2019), intergenerational education mobility (Guo, Song, & Chen, 2019) and social mobility (Chan & Zhang, 2021), among others. However, the effect of education policy on scientific publications has not attracted the same level of attention in the literature. ...