It would be valuable to try and reproduce these findings in a country like the US or UK whose citizens have been found to exhibit much lower socioeconomic mobil

It would be valuable to try and reproduce these findings in a country like the US or UK whose citizens have been found to exhibit much lower socioeconomic mobility [1] whereas the Nordic countries (as well as Canada and Australia) are known to provide much more mobility. I would be surprised if the results held up unaffected. [1] https://www.oecd.org/centrodemexico/medios/44582910.pdf https://www.oecd.org/centrodemexico/medios/44582910.pdf