International mobility of Finnish HE students has been steadily declining already before the COVID-19 pandemic since 2010. Finland is among the countries that produces an up-to-date comparable register based statistical data on student mobility by field of study, IHE and key student characteristics and this data can be accessed via an online statistical database (Vipunen). The average student mobility is found highest among students in business and social sciences, while being lowest in the fields of education and medicine. At the EUROSTUDENT Talks on 21 September, Juhani Saari from Statistics Finland suggested using the EUROSTUDENT data in determining the underlying motivational determinants that differentiate students within different fields of study. Are the field specific differences better explained through perceived benefits of mobility or differences in students’ social conditions? The findings may help determine new policy measures to boost student mobility of currently underrepresented groups.